Top Definition
Noun- A slang term used to define a guy gets a boner so hard to the point where his penis physically can not bend then you call it iron wood. A joke on the slang term for a penis, wood, further expressing how hard it us by adding the word iron to it.
Friend 1: Hey how'd it go last night with Sarah.

Friend 2: I wasn't expecting her to be hot, but when she stripped my dick turned straight into Ironwood and didn't go down for a couple hours.

Friend 1: Nice bro *High fives Friend 2*
by ghostin_us May 19, 2016

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

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

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt