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A person high on crystal meth who will steal something from you and then help you look for it.

Someone scoping out the premises looking for things to cluck (steal)

AKA - Theif
Bottom of the barrel sucker fish
"Dont leave that lerper alone with anything of value"

"That guy was lerping around the neighborhood"
by WiseOldGoat August 10, 2013
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Very similar to a "Creeper". A Lerper's intentions are to simply receive human contact, verbally, visually, or physically. A Lerper has no real desire for sex specifically, but rather they solely are interested in relieving the enormous state of loneliness they exist in. (Verb: Lerp Adj.: Lerpish)

"So when Allison was at the mall, she totally got creeped out by this lerper"

"Dude, Eric was totally lerping on that chick!"

"Mike was acting all lerpish today with Jen..."
by Siphadiaz December 03, 2008
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