by cobramark20 December 27, 2008
Usually used in sentence sarcastically, a Compression helmet counteracts and protects against the effects caused by the "fun theory". The "fun theory" states that if an individual has too much fun within a short amount of time, consequently, said individuals head will blow up.
Jon: So, what are doing on this fine Friday night?
Fraser: I have to go to bingo with my 94 year old
grandmother.
Jon: Better bring your Compression helmet!
Fraser: I have to go to bingo with my 94 year old
grandmother.
Jon: Better bring your Compression helmet!
by Roachey15 August 02, 2009
Messy hair. The flat, lifeless appearance of hair, or wild, 'uncontrollable' appearance of hair when a motorcycle helmet is removed. Most affected are women and it's a common problem for those with a coiffure.
When she took off her helmet, everyone could see she had 'helmet hair'.
Her 'helmet hair' took a lot of brushing-out before her hair looked nice again.
Her 'helmet hair' took a lot of brushing-out before her hair looked nice again.
by ColonelBlimp September 04, 2011
A homosexual term for when one guy butt fucks another guy. The "mud" is a crude term for shit in the bottom's anus. The "helmet" is to describe the shape of the head of the penis. When the top (helmet) rams his dick into the anus of the bottom, he gets shit (mud) on it. Thus, "mud on the helmet".
by rjc July 08, 2006
Very satisfying felatio.
by MC Mantis July 15, 2008
by soundchild January 26, 2008
by Quagmire April 03, 2003