A term commonly used when playing Left4Dead 2. It referrs to the special infected Jockey due to its ability to jump on the back of one's head and drive them into danger.
by Jakitup January 22, 2011
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back head humper
• Wet Back Head
• Back Bumper Head
• get your head back on
• Let's put the head back on the chicken
• Little-Person-In-The-Back-Of-Your-Head-Syndrome
• slap your tall friend in the back of the head day
• commit suicide by two gunshot wounds to the back of the head
• It feels like I got hit in the back of the head
• backhead