Top Definition
spermies from a guy. The white texture of mayonaise resembles sperm, hence, MANaise.
After getting my dong slobbered, Betsy had to wipe the manaise off of her lips.
by Robby June 10, 2003
1 more definition
a term for the thick creamy substance excreted from a mans penis after sexual activity, commonly refered to ass jizz, semen, nut, cum, or sperm
that dude sure has lots of man...aise
by jim May 06, 2005

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