(Pronounced: kir-king) A simulteanous combo of jerking off while crying. Usually accompanied by pictures of your ex or mental visons of a tough breakup.
"I think Zak is going emo on us. After Vanessa dumped him, I caught him cerking it to old yearbook photos of her. I haven't seen a man cry that hard in a long time."
Todd: "Hey Bill"
Bill: "Yeah Todd?"
Todd: "My parents are out of town this weekend and a bunch of guys are coming over to cerky. You in?"
Bill: "Hell yes im in! I would love to cerky with you guys!"