Top Definition
when riding in the Army tactical vehicle known as the HEMTT (heavy expanded tactical truck) the occupant will receive an erection in less than 30 minutes of travel. This is usually caused by the vibration, bouncing and generally rough ride of the truck.
We had only been on the road for about 5 minutes before i got hemtt bone.
by explodie December 06, 2011
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.