Top Definition
the act of eating someone's ass while they accidentally pass loose stool in your mouth
Girl I was tossin his salad good last night until he slipped that loose burger right in my piehole!
by Craigiemoto March 22, 2011
2 more definitions
When a girl wears a skirt so short that her clam hangs out the bottom.
Man, take a look at Brit's loose burger. I think that dress is hot!
by Siberwulf June 29, 2011
Someone who is not particular about who they have sex with.
Katy: I can't believe she slept with him!
Pat: That bitch is a looseburger.
by PatK September 19, 2007

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