Definitions by Wordpioneer

Nipf 

A sexual act in which the female inserts the tip of her nipple into the man's urethra.

I'm going to nipf my boyfriend tonight.

Nipf by Wordpioneer October 11, 2014

Backfuck 

When a woman's shoulder blades are squeezed together, making a canal that is then fucked.

That girl was awesome, she let me backfuck her.

Backfuck by Wordpioneer October 11, 2014