by The Real(ish) Slim Shady October 30, 2011
It means Cheating. When a person is in a relationship and they are cheating with another person they refer to their relationship as 31.
by A 31 victim April 21, 2010
Otherwise known as a tit job, 31 is the act Of a guy sticking his Penis in between a girls Boobs. It does nothing for you but Guys think its pretty cool and supposedly it feels good.
by Lyssa Darlin April 11, 2010
by JL06 March 22, 2004
knicknamed 31 for the term reggie miller bud...known for giving headaches, body pains and sleeping disorders...
by Gangsta J August 23, 2006
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