An incorrect spelling of helmet, usually by southerners or rednecks. This error arises because the pronunciation of helmet with a southern accent is indistinct on the second syllable, and because people tend to write words according to local phonetics.
Mother: Bobby, don't you go riding your bike without wearing a helment!

Bobby: Jesus Christ mom, it's HELMET. I'm 5 and I know that.
by GetItRightMorons May 29, 2011
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To penetrate someone anally with the penis.
guy1: Hey, man, you ever get mud on your helment?
guy2: Sorry, dude--I dont' swing that way.
by moonyewnit March 23, 2009
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