Stonerstache 

the hair that grows above the upper lip after smoking pot for several days straight.

after smoking Peyote for six straight days, i looked in a mirror and discovered the stonerstache i had grown.

Stonerstache by itsralf October 21, 2010

stoner 'stache 

A perpetual, ever-existent light mustache that is not bold enough to be taken seriously in the world of facial hair, nor is it light enough to be deemed unnoticable, as if the guy does not care and smokes pot all day.

That guy should shave that stoner 'stache, it smells like pot.

stoner 'stache by nrrgh-bcox September 7, 2010

stunnerstache 

When a person intentionally grows a mustache that looks incredibly ridiculous to make them stand out.

Mustaches were big in the eighties and have always been big with cops and firemen. For some reason most normal guys can't pull it off. So they grow a stunnerstache as a prank to draw attention to their upper lip.

footnote: This also applies to both sexs.

stunnerstache by Big Junior January 28, 2008