To throw expo markers at people and pwn them.
Kerrigan: Jeeeeeze Sarah you just expwned Carolyn.
Thomas: I helped her! Look at her face.
Carolyn: Thanks for expwning me guys...
Where one has feelings for his/her ex and keeps getting in contact with him or her, which results in being pwned one way or another due to being a spin-less retard who can't get over the ex and move on.
Jonny and John were Expwned the other night; they should've known that it was a bad idea to contact their ex.