Oh, better give me your hat, Jack 'fore I snap back
Or else I'll decapitate your head and fit it in a backpack
Some may be aware of the fact that M'Balls is actually a notorious hat stealer and will jack your hat if he pleases. He was most recently seen in the Michigan area so be careful.
Wordplay with the different synonyms of hat:
Hat — snapback — de-cap-itate — fit it/fitted
If you are not willing to give him your hat he will take it from you thus de-cap-itating you.
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