A fork of Rural Dictionary
Refers to a person named "sizl" or "sizzle" having an erect penis which is throbbing as it is being stroked.
Piza: "Oy look at Sizl"
Demo: "Thats Sizl's Throbbing Cock I have see it everday"
Piza: OH ITS SO BIG
Sizl dies of cringe after seeing everyone else has a smaller cock