The act of a female (or occasionaly a male) going fuk wild over justin bieber. It is pretty much the equivalance of a guy getting a boner for some hot chick.
Girl- uhhh justin bieber is so smexy, i wanna touch him and listen to him sing, ever though hes probably homosexual!
Guy- shut the hell up! i dont care if u have bieber fever as long as u keep it in your pants!
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