Top Definition
A person's hairline when it starts to recede and he (or she) loses two clumps of hair on the top of his (or her) head and at the sides, been left with a piece of hair in the middle of the head which (usually when brushed or slicked back) resembles a triangle.

ie: Phil Collins from the late 80's onwards.
Do you remember that guy from the film, you know, he had a three degree's triangle?
by Anthony Corbett December 01, 2006

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug