Tall girl boner 

One simply getting a boner from an unusually tall girl.

Jimmey gets a Tall girl boner every time he sees his teacher in math class.

Tall girl boner by Pig problems May 30, 2014

girlboner 

When a female mammal, has a hardcore lusting attraction to a male, or female, for that matter in a sexual, and sometimes even sexually deviant persuasion.

K-licious totally has a girlboner for that new dude that sells the crystal meth.

girlboner by Jon Himself April 29, 2003