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2.
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 November 30, 2012
 
1.
A two-ply condom used when going skanking or engaging in questionable activities with skanks or suspected skanks..
Bobby needs to use a gutter helmet before he lays the pipe to Britney, Paris, Nicole or any of those other skanks.
by Scott Frea September 19, 2006
 
3.
Gutter Helmet is the act of getting a blow job from a dirty girl.
Tony always sneak's around with Jennifer so nobody see's then, be he secretly hopes for a little gutter helmet.
by -cM June 18, 2007
 
4.
A condom
Got to run by the store and grab a box of gutter helmets before I hit that skanks' place.
by surveyor3 December 04, 2013