Actually, Shakespeare never used this specific phrase. If he had, the gramtically correct way to say it would be "I bite my thumb at thee!"
Synonyms for I bite my thumb at thou!
On this page, you will find 30 slang terms related to I bite my thumb at thou!. Some of the top words include: Oh S, hootnani, fo' sheezy y'all, belter, si party, and 25 more.