pervalry 

The act of behaving like a gentleman with the ulterior motive of getting a good eyeful of a hot girl.

Examples would include letting a girl go ahead of you up an escalator so that you can stare at her ass on the way up, or letting her have your seat on the bus so that you can stand next to her and stare down her top.

Pervalry is a portmanteau of the words "pervert" and "chivalry".

Hey, a hot girl's coming down the aisle. Show some pervalry and give her your seat.

pervalry by George McBob April 23, 2009