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Penis-Endowed Life Partner. Compare with "VELP", which was coined by Tim Minchin regarding female partners. PELP is the male equivalent of this.
My PELP and I went to see Tim Minchin last night
by Spirit (CatsnBatsFeet) January 24, 2011
Pelping someone means to slowly insert a dead fish into their rectum.

This is taken from a famous German cartoon by Walter Moers.
...where he was pelped by the Inquisition...
by housetier April 09, 2005