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a group of males that constantly loiter around elementary schools and dirty garages. these people usually unite with other yamshackers through the use of tobacco products such as skoal chew, or any type of cigar or cigarette. the one thing that will anger a yamshacker more than anything is when an outsider goes on their turf. avoid this at all costs!
Steven: Dude, you wanna get all of the VP Yamshackers together?

Justin: You mean you, me, Jordan, Max, Vitaly, Nick, Brian, JC, Cody, Kyle, Greyson, Romain, and all of the other real yamskackers?

Steven: Ya...And don't forget the SLIP!!!!
by justin norton June 12, 2007