Man 2: that's not a fag, he's wearing Guyliner he's clearly cooler and is more comfortable with himself than you Man 1
Girl 3: yes person 1, I think you may be in the closet either that or you live in Wales.
Girl 4: I would totally let him penetrate me. Along with the vintage Gucci and tattoos that Guyliner looks soo hot
It can also be used ironically by a second party, making fun of those belonging to the aforementioned groups, aka emos, wannabe rockstars, hipsters, etc.
Boy: Its not eye liner! Its Guyliner! ...MOOOOOM!! Sissy's stealing my things again!!
Jock: I bet you don't attract as much poon as me with your stupid Guyliner! Ah ha ha!
Emo: *cries softly as he Tweets about his problems*
though be warned.. its hard to pull off..
..if your ugly already we can't help you...