Definitions by EEOC

girlcrush 

An infatuation an individual holds for a female child.

Kirk had a serious girlcrush on Brooke Shields after seeing the movie Blue Lagoon.

girlcrush by EEOC March 10, 2007

boycrush 

A crush or infatuation an individual holds upon a male child.

Julie had a serious boycrush on Christopher Knight when he was playing Peter Brady on tv.

boycrush by EEOC March 10, 2007