Card Crusher (A.K.A Rude Dude, ZoomJap, rude asian, rudeazn) is that cool dude you have probably seen on youtube who teaches how to crush a business card, how to lick a girl's photo and other great things.
He's quite popular on /a/ and /jp/ where is usual to find edits to replace the template with whatever anime, manga or situation in Ps or similar.
Guy 1: Did you see that? reminds me of card crusher...
Guy 2: He crushed your ticket!!
You: Oh no... :despair:
mpw is an acronym standing for the term "My Penis When" randomly used in some imageboards and irc channels, it shows a way to express yourself when your penis get shocked, impressed or in someway amused by any image, news or comments.
anon1: hey look another incredibly fappable moe-moe animu this season!!