erple
The inability to correctly pronounce the "r" sound, instead forming a "w" or completely omitting the "r".
Ahmad: Want to go on the wed wollah-coasteh?
Monica: I think you might need to go to speech therapy for that erple.
Ahmad: I don't have an ewple!
Monica: I think you might need to go to speech therapy for that erple.
Ahmad: I don't have an ewple!
Erpl
A very specific form of typo, in which your brain gets ahead of your fingers and you transliterate the letters of a word in a creative or amusing way.
"#!/usr/bin/erpl" was the original erpl. "Urban diciontary" is another example.
Mr Erple
A Man With The Most DUMPIEST DUMP TRUCK IN THE WORLD.
Mr Erple has the phattest ass in ZA WORLD.