Top Definition
A pseudo-activist who participates in marches and other activities so that he may have access to cute girls who believe in saving the planet. A compounding of "to mack" and "activist." For obvious reasons, this noun has no feminine iteration.
Look at those boys with the "Peace Now" sign -- they ain't nothing but macktivists.

From what I hear, the treasurer of the campus Green Party is a total macktivist.
by Brendan Baber July 17, 2004

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

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

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt