What does it mean??anyone??

Actually Miss Yee ( our english teacher) tested Mark but he didn't prepared any material for oral test so kena lectured lah. so Mark say

"Thumbok dek legik". ( i'll give u a punch)
so everyone was like hahahahah
(slowly)
Miss E " Uristher, wat does dat mean?"
Uristher" Em, i dun
really understand."
Miss E" Why did u laugh!?

Bastard. actually Uristher understand the term in addition she's Iban

At last

Miss E "Mark, wat did u say?"
Mark " I say, i'll bring it 2mrw."

Kamik mait kertas pgilak. thumbok dek kegik. Isn't dat a HUGE diffrence??