stands for Wolf Pack For Life (WPFL)
closing statement, often affixed to a text message or email. used to signify a strong friendship/bond, like a tightly knit wolf pack, where each person looks out for the others.
Pinky:today was awesome, but i gotta get some homework done, i'll talk to you later
Brain:yeah, i had a pretty amazing day as well, can't wait for this weekend
Pinky:for sure, good times will be had, later, WPFL
Brain:alright, have a good one, WPFL!!!