Top Definition
Stuff big kids do. like teenagers. Which would be have sex, make out, get high and wasted.
Guy: Wanna do some big kid stuff?;)
Girl: sure, yolo..;)
by Smd biotch November 23, 2013
1 more definition
Let' do these drugs.
Hey man, I just went down to the getting store, so lets go do this big kid stuff.
by Kitty3vil September 05, 2010

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