Iguanodon 

1. An iguanodon is a prehistoric dinosaur known for it's sharp thumbs.
2. An iguanodon is when you take either of your thumbs and stick it into your friend's neck. If blood comes out, you did it wrong.

1. "And now we're moving on the bones of an iguanodon, it was known for it's incredibly sharp thumbs."

2. Son: "Mom, some kid stuck his thumbs into my neck"

Mom: "Dont be such a pussy it was just an iguanodon."

Iguanodon by GhengisK June 28, 2010

Iguanodon 

The dinosaur with a hella sweet Mohawk

Raymond:whoa that iguanodon has a killer Mohawk! This is a pretty cool dinosaurchestra

Iguanodon by raybeez January 3, 2023

Iguanadong 

When a guy has a long ass dick

Did y’all see Noah walking around the locker in his boxers ? He has an iguanadong!

Iguanadong by Puro956 March 1, 2019

iguanadon 

Another term for a mans penis

Holy crap Ted!! Your Iguanadon is showing!!

iguanadon by Mr. Veloci P. Raptor September 23, 2013