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2.
1. Testicles
2. Exams more difficult than quizzes, but not as difficult as regular tests.
If you think your English professor's 'quizzies' are difficult, then you would hate to see his 'testes'.
by Child w/Headphones February 12, 2007
 
1.
Short form of testicles. You may also know them as balls, bollocks, cojones, huevos or nuts.
I use all of these terms, and more besides, but then I am Ian Chode, the greatest swearer of modern times!
Chode: Eat my testes, bitch.
Bitch: OK. Mmmmm, better than McDonalds.
Chode: Splat!
by Ian Chode September 22, 2003
 
3.
1. The plural of "tests" or exams.

2. Any multiple of a timed evaluation.
"How did you do on all the testis"
by integrallarry May 13, 2010