a sexual act in which a man or woman get on their back while a line of men ejaculate on them, but this important: they have to go over the man or woman like their a train going over them and the gravy is obviously the semen.
by the train wrecker February 12, 2009
Get the gravy trainmug. 
N. (grAH-vee rayn-bO)
The fecal mustache that is created when a person performs fellatio on their partner after their partner has pitched during anal sex (Ass-to-Mouth).
Although possible in heterosexual encounters, the term Rainbow indicates that it is primarily a homosexual term.
The fecal mustache that is created when a person performs fellatio on their partner after their partner has pitched during anal sex (Ass-to-Mouth).
Although possible in heterosexual encounters, the term Rainbow indicates that it is primarily a homosexual term.
by Ribaldo Givera July 26, 2011
Get the Gravy Rainbowmug. n. Aussie surfer term for a special thunderous wave that comes at the end of a good day of banging about on the woolies.
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What you reckon? Time to get home and grease the koala?
No, no! Hang about Fred! I think I see a gravy wave forming.
No, no! Hang about Fred! I think I see a gravy wave forming.
by gnostic3 November 3, 2016
Get the gravy wavemug. by Orrrrrrrrson November 11, 2014
Get the Grim Gravymug. by obangomcdoogle August 18, 2020
Get the it's all gravymug. by jinglebot January 13, 2008
Get the gravy piemug.