Top definition
A Phrase which can be used in many cirumstances though originally used to enhance the point that your penis is very big, by inferring that its huge even as a semi lob on.


1. To infer the size of your penis
2. To infer you manliness
3. To remark that were unphased by a situation
1. Yes laydees, and thats not even tense
2. *Flexes Guns* Oooooh not even tense
3. *Knocks a man out with a single punch* Not even tense
by Perples January 16, 2007
Get the mug
Get a Not Even Tense mug for your guy Jerry.