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"Thowin stem" is when you whip out your "stem" and "thow" it "allupinzoid". In other words, your insert your penis into someone or somethings orifice. But you cant do it like a wimp, cuz thats not "thowin" it. You got to haul off and really THOW that bad boy all up in there, ya know?
1) Damn, shes a bitchin ho... I think I'm gonna "thow stem" tonight.

2) Damn, she turned me down, it looks like I gotta "thow stem" allupinhand tonight.

3) Brenda was on the rag so I had to "thow stem" allupindamowf.
by Ezeerider July 31, 2004
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