the body part that spouts a funny-smelling liquid and sits at the top of a long (from my experience, anyway) rod of pleasure. coincidentally, it also resembles shawn williams's head.
hey look, shawn williams got the purple helmet haircut! let's go stroke his neck to see if he shoots his wad!
by negro June 11, 2003

The after effects of inserting the penis into the dirty ass of another. When the penis is pulled out the tip of the cock is lightly covered with poo thus giving it the look of having a mud on the helmet.
by Mr. Mud Helmet June 3, 2009

by LucyLuLaBelle December 21, 2009

When a woman is on her period and you are eating her out, getting your Red Wings. When you finish the job you drag your head, from the tip of your nose to the back of your head.
Dude, I was getting my Red Wings last night when I topped it off with a double banger! I got a Roman Helmet too!
by Hasteusaf August 26, 2009

quite similar in practice to Arabian Goggles, the Norman Helmet involves placing one's testicles over another's eyes while the reciever is on his/her back (usually asleep), and the shaft of the penis runs down the length of the receiver's nose, reminiscent of an medieval cranial protection device from the days of yore.
"Jimmy fell asleep first at the sleepover, and so billy gave him a Norman Helmet"
or
"right before i came on yo momma's face, i gave that bitch a phat Norman Helmet"
or
"right before i came on yo momma's face, i gave that bitch a phat Norman Helmet"
by alex el maestro October 25, 2006

When having sexual intercourse, usually a Hate Fuck, you force the top of the head of your partner through a wall.
Last night I was so fucked up I decided to bone my ex again. She still had a line across her forehead from the sheetrock helmet I gave her last wednesday.
by Alan Ashton October 3, 2008

A regional variant common to southern New England for the practical joke/sexual practice known elsewhere as the Dutch oven: i.e. when one partner holds another partner's head beneath a blanket and passes gas.
Sheets are OK for a gutter helmet, but for the real, face-full-of-flatulence effect, you need to go with a down comforter.
by OrangeTruck December 5, 2012
