sticky lips is another way to say whore, slut, or skeez bag.
you could also use it to describe a person who is so slutty that you wouldnt be surprised if her lips were consantly sticky from sucking so much dick.
1)WOW DUDE, i just got some nasty dome from that marisa girl.
2)FUCK DUDE! that bitch has sticky lips sonn!
1)OH shit man!
2) haha you stupid fuccer!