thin-lipped

The act of having nothing to say in conversation, so you just sit there with your mouth closed, looking unattractivally thin-lipped.

man, my date was so thin-lipped. she had absolutely nothing to say

by amireal August 26, 2010

The Old Lady Thin Lip

When someone is giving a blowjob and they tuck their teeth behind their lips, making their face look like an old lady with no teeth, gummin' your dick around her mouth.

She's hot, but she gave me the old lady thin lip on my tip.

by Chingthething December 12, 2017