Having your tongue tickled by a moldy pickle that was given to you by a pterodactyl that you tickled to get the pickle.

Alternatively, it regards to a large variety of internet slang regarding acclaimed blogger Dan Bergstein, loam, and Sparknotes.

First featured on Facebook, now used as a codeword between "sparklers" everywhere.
Santa: What was it that Dan wanted for christmas?
Elves: Ptickle.
Santa: Better get on it!
by Merry_Christmas December 3, 2010
Get the ptickle mug.