Top Definition
A man and woman engaged in an act of sexual intercourse. An expression whose usage dates at least as early 1604, being mentioned in Shakespeare's Othello.
Your girlfriend and your bestfriend are making the beast with two backs.
#sex #intercourse #fucking #baby-making #bowsheka bow wow
by Lenee January 14, 2007
to have sex, having intercourse
wendy and marcus made the beast with two backs after serious foreplay
#fornicating #humping #fucking #making love #banging #copulation #coitus. sexual congress
by Adriana G. April 21, 2006
The frightening moaning creature that two people become when they engage in intercourse
Watch a porno and you'll know what I mean. The beast with two backs can even be found in your bedroom or any popular sexual habitat
#2 #beast #with #two #backs #bakz #w/
by Marisha A January 20, 2007
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