Top Definition
a 'fan' that screams in mcfly's faces. stalks mcfly. thinks they know everything about mcfly. oh, and most of the time.. they end up on mcflysecrets :)
can be either gender.
"she/he's a mcfly teenie! look at her/him! stalking mcfly! omg, shall we go & try and meet up with them & get on mcflysecrets?"
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