Very deep verticle wrinkles around a persons mouth. Typically seen on females who are heavy smokers.
Deb: Oh my, your friend Sally's mouth looks like a spincter.
Janet: Well what do you expect...she smokes like two packs of cigs a day, she's bound to have a sphincter mouth.
Janet: Well what do you expect...she smokes like two packs of cigs a day, she's bound to have a sphincter mouth.
by Saurus-rex March 1, 2011