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1. fat sex
to have sexual intercourse with a heavy set (large) person.
"Billy Bob, why did you have sexual intercourse with her?"

"coz its fun to fuck squishy... you know, fat sex"
2. fat sex
1. Intercourse between a normal person and a very very fat man.

2. Both people are very very overweight...trying to have sex.

3. A skinny man attempting to have sex with a very large woman.
ie. Haley is going to have fat sex tonight.

"He tryed to have sex last night."
"Sex?"
"Oh I meant FAT SEX."
3. Fat Sex
Terri Page up the anal
wow i fat sexed terri
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