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4.
to poop in someone else's butt
as an inside joke at a wedding by the best man: "when times are hard, you've always been there to top me off"

as an inside joke when filling people's beer cups at a party with a pitcher, filled up from the keg: "anyone need a top off?"

when you actually poop in someone else's butt
by meaty hand man August 04, 2008
 
1.
To give him oral sex
I was just wondering if you top off ?
by BlackDiamondz April 06, 2006
 
2.
Condiments.
I would like top-offs for my hotdog.
by ohashala May 04, 2010
 
3.
After cumming in a girl's or guy's butthole, you pee in it.
I fucked this girl in the ass last night and after I busted in her butthole, she asked me for a top off, so I peed in her butt.
by vinny vega December 11, 2006
 
5.
1. To breed with someone of African descent to assimilate some of their genes into one's progeny. Used with the assumption that this will result in desirable physical traits (full lips, curly hair, bronze skin) or African sterotypes (better rhythm, larger penis, better muscle-tone, sports ability).

Usually used by people with some existing negroid admixture.
Check out her nasty thin lips. She should top off on her 'groid.

My phenotype is pretty caucasoid, so if I marry a nice Aethiopid I can top off my blackness without getting maxxed-out features.

by RAS crew November 29, 2006