a ripped or build teen age male, compeered to the action figures from the shelve.
example 1: -omg what a show off
-another rack boy

example 2: fark i seen a huge rack boy at the gym !!!
by rusk1 February 14, 2008
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it means get off me so when someones on you on fortnite you kill him and you say the sentence
oh someones on me bois , i got him hopp off my rack boi
by Marko._.bot April 18, 2019
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