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1.
grim reaping: Giving someone "the look of death," when you catch them creeping on your girlfriend, wife or teenage daughters.
Emily: Dad got really pissed at the pool yesterday and was grim reaping on some guy.

Abigail: What happened?

Emily: Dad caught some weirdo creeping on me. The way dad was looking at him, I thought the guy was dead for sure.
by Rick Sangamon July 17, 2011