Top Definition
The act of ejaculating onto a plant, and then giving it to someone as a meal.
Man-"Last night I saw Jim herp on a plant, and later his wife was derping it!"

WomanA-"I love herp derping!"
WomanB-"Me too! It's so tasty!"
#herp #derp #herpderp #herp derp #herp derping
by CaptainYuri April 06, 2011
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