1 definition by anyapiratepixy

Someone who enjoys doggy-style being so hard they have to bite the pillow to muffle their screams/moans.
Example 1

Joe: So, what was she like last night?
Bob: She's a total pillow-biter, dude!

Example 2 (insult)
You pillow-biter!!
by anyapiratepixy May 6, 2010
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