It is a informal name for a cigarette,commonly used by teenage rebels who have father issues and who experience depression
Light me a twunge bra; can you stick me a twunge ?
a portmanteau of twat and clunge
-a silly person
-individual lacking fundamental motor skills
"Look at him he has dropped his hadron collider on his shoes AGAIN. What a twunge."
"Why is there marmite in my twunge?"