to wtfpwn (third-person singular simple present wtfpwns, present participle wtfpwning, simple past and past participle wtfpwned) (Internet slang) -To dominate or defeat thoroughly -To wtf pwn, is to completely and utterly destroy something in style -To pwn very hard, ostensibly to the point of making the pwnee say "wtf" -Beyond simple a simple pwn, "wtfpwn" means to pwn someone in a quick and decisive manner, such that they don't know what hit them and/or have little chance to react