w/f/e is an add on to w/e(What ever) meaning What Fucking Ever. Used for situations in witch one person doesn't give a shit about something someone else has to say.
Guy1: arent i just a big ball of confusion and retarted fun?
Guy2: lol
Guy2: retard has a D in it
Guy1: w/f/e
"Laugh Silently In My Head Because It Wasn't Actually Funny Enough For Me To Laugh Out Loud"- Other known as what REALLY happens when one of your friends texts, or says "L.O.L"
John- Yeah, i had to walk 37 miles to get home...
Frank-"Lol"
John-"..."
what reallyhappend when Frank heard that was L.S.I.M.H.B.I.W.A.F.E.F.M.T.L.O.L.