The art of sleeping with a boyfriend's, girlfriends, ex's or homie's friend. When you have had sex with an aquaintence of someone you are dating currentely. Can also be used as a noun i.e. Homie Smasher, or as an adjective i.e. She smashed the homie
Paul: So how is Mollie?

Meg: Well she has slept with two of your friends.

Paul: She's really into homie smashing.

John: How do you and Jake know eachother.

Anne: Oh...we hooked up a few months before you and I met.

John: UGH! you smashed the homie?
by best friend of a homie smasher September 10, 2009
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