Top definition
An erect penis that is still VERY flexible when it should be hard as steel.
"oh my gosh he kept slipping out because of his flexsteel"
by rbgreg September 13, 2005
Mug icon

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