whether you want one, want to grab one, or want to be called one, this tag names the flesh and makes it the entire point.
whether you want one, want to grab one, or want to be called one, this tag names the flesh and makes it the entire point.
a tag for characters with a notably large, thick, or prominent ass. it's a body descriptor that can be plain appreciation, a kink, or a degradation/praise term depending on tone. in roleplay and fanfic, it signals that the character's rear is a focal point—for visual enjoyment, physical action, or verbal acknowledgment.
likely grew out of fat admiration (FA), body positivity, and the 'big butt' appreciation wave that mainstreamed in the 2010s. the word itself is old slang, but as a searchable tag it spread through AO3 and character bot sites where users wanted a direct, unfiltered label for body type fantasy without euphemisms.
common in character descriptions and scenario tags to say 'this character is packing volume downstairs.' often paired with [[tag:thick|thick]], [[tag:bbw|BBW]], [[tag:bhm|BHM]], or [[tag:chubby|chubby]] for broader body framing. can sit alongside [[tag:spanking|spanking]], [[tag:anal|anal]], [[tag:ass-worship|ass worship]], or [[tag:humiliation|humiliation]] depending on whether the vibe is celebratory or mean. shows up in both dominant and submissive contexts—a fatass can be something to take pride in, something to be shamed for, or something to be aggressively desired.
the tag does two jobs at once: it names a body part and forces the reader to confront size preference without apology. the payoff is about specificity—calling a character a fatass is not neutral description, it's an editorial. you are saying this body matters, this flesh is the point. for some readers, it's pure worship: they want to see that ass adored, grabbed, eaten, praised. for others, it's a degradation landmine: the word carries slur history, and using it in play can create a humiliation high that says 'i am so much of a slut for you that i'll let you reduce me to a body part.' datacat's read: this tag is often a confession. someone who seeks out 'fatass' content is usually tired of vanilla body language. they want the character's fat to be visible, mentioned, centered—not just implied by 'curvy' or 'thick.' it's a demand for representation that doesn't tiptoe.
fatass appreciation – pure worship, no shame, just big beautiful ass energy
fatass humiliation – using size as an insult during degradation or objectification play
fatass domination – the character's ass is a weapon, a throne, or a control point in power dynamics
fatass submissive – the character's ass is presented, offered, or taken as part of submission
fatass praise – affirmational dirty talk that celebrates the size and shape
fatass breeding – size linked to fertility or pregnancy fantasy
fatass in pairing tags – signals physical attraction based on glutes
in a bot card: 'Name: Marcus. build: broad shoulders, a belly that hangs soft, and a fatass that strains his jeans. he knows you're staring.'
roleplay prompt: 'You run your hands over my hips, digging fingertips into the fat of my ass, and say "god, what a fatass. you love showing it off, don't you?"'
AO3 tag: 'Belly Kink, Fatass, Praise Kink, Size Difference' on a story about a curvy character being worshipped by a smaller partner.
people who want body representation that doesn't filter through euphemism. readers who are tired of 'ample backside' and want the character's fat to be a feature, not a footnote. also for anyone whose arousal map includes size contrast, soft tissue, or the sensory weight of a big body part. works for all orientations if you swap partner roles accordingly.
thick
bbw
ass worship
degradation
praise kink
not necessarily – sometimes it's just a body descriptor in a character profile. but on a kink list or in erotic roleplay, yeah, it's loaded with intent.
sure, in general fic it might be a character being mean. but when you're tagging it explicitly, you're usually inviting the reader to get off on that insult or that praise.
try 'thick ass' or 'big ass' – still direct but without the slur baggage. but if the word itself gets you going, lean in. datacat says shame is a waste of bone structure.
because some people want to be objectified and degraded for the exact thing they're sensitive about. the fatass becomes a target and a gift at the same time. it's psychological, not just physical.
nope – male, femboy, nonbinary, monster, whatever. ass is universal. check pairing tags for context.
not necessarily – some people have big asses on otherwise moderate frames. but it often tags along with belly, thigh, and overall size descriptors.