Top Definition
I 89'd that bitch like whoa
by Jake March 29, 2004
To use a Texas Instruments TI-89 to pass a calculus exam, either easily or with difficulty, that would otherwise be impossible to do in the normal fashion.
I 89ed that test the whole way through, it was so easy then.

I am going to 89 my way through calc 4, I can't do double integrals .
by Joe_B March 25, 2007
This word is a combination of 86 and 69. Used when referring to having sex with a person then kicking them out or leaving immediately afterwards. Similar to a booty call or a one night stand.
If you see a male or female you would like to have sex with and thats it, you would say "I'd like to 89 her/him" or "I 89'ed her/him last night". This word was created by a buddy and I at the bar when a very drunk girl said we should 89 a guy for being rowdy. She mixed up the words 86 and 69; thus, the word 89 was born. We found it amusing and have not herd the term used anywhere else, making this a great place for it.
by -=Mr.JaVa=- May 24, 2007
20 people doing "69".
89 is when 20 girls are doing 69.
by Is this thing on? March 31, 2007
a verb refering to the use of a ti 89 (texas instruments calculator) on algebra problems.
student 1: Ahh...problem 3 is annoying. i dont feel like spending time to solve for x,y,z, and b

student 2: 89 it
by gotta November 17, 2006

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