HSM stands for High School Musical, which is a disney film that is highly popular among all girls 16 years of age and under.
But lets be honest - its the biggest crap ever. The main characters are Vanessa Hudgens (err... a whore) and Zac Efron (a total fag). I've watched it once and the plot has obviously been pulled out of someone's arse.
There is a lot of HSM merchandise that can be found practically in any store.
Friend: Do you like my new HSM pen?
Alice: NO ITS GAY.
by Alice-Jane August 23, 2008
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Heat Seeking Missile - originally defined as a weapon of war but also used to describe someone (a male) with a high sex drive who is always chasing poonani and keeps up the persistance despite getting repeated knockbacks
As in : "Jimbo is an hsm" or "Jimbo was always despatching the hsm" or "Jimbo has an hsm"
by Big Gazza WMD December 02, 2005
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Abbreviation for High School Musical, the hit movie on Disney Channel. Stars Zac Efron, Vanessa Hudgens, Ashley Tisdale, Lucas Grabeel, Corbjn Bleu, and Monique Coleman.
HSM is my favorite movie!!!!
by Tohru Honda November 18, 2006
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1 - Hot Sexy Man, a man who is hot!!
2 - "Hey Sexy Man!!", Something you and your girls shout to hot men walking by.
1 - Reuben is such a HSM
2 - He was giving me the eye so I HSM'd him and ended up getting his phone number!
by Melanie M September 06, 2005
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