Wtfpwn, v. - To pwn very hard, ostensibly to the point of making the pwnee say "wtf"

lil mad is like big mad but the opposite, you mad but not mad to the extent of pullin somthin

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 before dying.

To wtf pwn, is to completely and utterly destroy something in style, commonly used by "wtf 1337 cnuts" like fw.

Combination of WTF (What the fuck) and PWNS ('owns' in the sense of 'defeats', see: PWN). Used to describe a total victory over someone who didn't even stand a chance.