Top Definition
-Quality of Oral Sex
-Orgin- Penis is the head. From the head you get knowledge or receive knowledge. Knowledge is then used for grades. Hence, test grades.
I took her back to test grades.
by Isaac Asimov May 09, 2006
5 Words related to Test Grades

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×