I bite my thumb at thou! 

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!"

I will bite my thumb at them, which is disgrace to them if they bear it.

--Shakespeare (from Romeo and Juliet)

I bite my thumb at thou! by Anonymous April 27, 2003

I bite my thumb at thou! 

It pretty much mean fuck you in lamens terms, or a different way to flip someone off back in the day

I bite my thumb at thee for being such a disgrace!

I bite my thumb at thou! by Jaja November 30, 2003

I bite my thumb at thou! 

This, actually means that you want to start a fight. A looong time ago people used to "bite" their thumb at someone to show that person you don't actually care about them.

I bite my thumb at thou!. I completely disagree with you all the way.

I bite my thumb at thou! by luciana September 29, 2005

I bite my thumb at thou! 

It's an old English term for "Fuck you!" Is used in many of Shakespeare's plays.

I bite my thumb at thou! Thou hast beseeched thy family!

I bite my thumb at thou! by Holla Back! January 26, 2003

I bite my thumb at thou! 

When armies took prisoners in southern Europe in the middle ages, they would sometimes be offered the chance to earn their freedom by eating a fig from a mules anus. As the captors taunted their captive, offering him this degrading method of escape, they would bite their thumbs.

I bite my thumb at thou! infidel!

I bite my thumb at thou! by Themanwiththegiantwilly September 26, 2005

I bite my thumb at thou! 

As has been noted before, it has been used by Shakespeare.
A qualified guess is that the phrase, (and the hand gesture that accompanies it), symbolizes oral sex,
and implies that the insulted is gay.

Shakespeare - "Romeo and Juliet"

I bite my thumb at thou! by Hakan July 26, 2004

I bite my thumb at thou! 

a vaginal cream using in the "love-making" process

look mate! It's (hey sues)!

I bite my thumb at thou! by rusty shakleford January 26, 2003