trannyblock 

To prevent someone from engaging in romantic or sexual interaction with a gender-transitioning (sex change pre-op or post-op) individual.

"Dude I totally had to trannyblock you. That chick had an adams apple and a five o'clock shadow."

trannyblock by The Real Scissorpie October 3, 2009

Trannycock 

The male genitalia of a transexual woman.

Brent, being attracted to shemales, enjoys fantasies about trannycock.

Trannycock by Floridawordman May 30, 2011