Top Definition
a small penis that becomes unexpectedly large when aroused
girl 1: damn he had such a houdini weenie!

girl 2: ya i heard it grows better than it shows
by quarrion October 31, 2011

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug
When having sex with a girl doggy style, spit on her back, when she turns around thinking your done,cum on her face.
I was like a magican and pulled a Houdini weenie as a trick.
by The Amazing Pudges November 18, 2003

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug