1 definition by Tenatzen

Beancup

When a girl you, or a friend, is going out with becomes or turns out to be mentally unstable

Scott: "When we started going out, everything was great. Then she started acting up, threatening to dump me for the littlest things. What should I do?"
Johnny: "You still going out with that beancup?"

by Tenatzen January 6, 2009