Grundy

Slang term for an erection.

Originated from the Archie comics character Ms. Grundy who was loved (one way or another) by everyone.

Example 1:
"While slow dancing with Betty, Jughead got a huge grundy."

Example 2:
"Megan Foxxx could give any straight guy a raging grundy."

by Sauceboots April 23, 2010