I was thinking “Howdy tooth man” and a little tooth wearing a cowboy hat or the word “No” for a more literal meaning to the idiom “Read my lips”
To be clear I’m not actually going to get a tattoo on the inside of my lip this is just a shower thought.
Attached is my best attempt at AI generating an image of a cartoon tooth wearing a cowboy hat.
A nurse at work had “CA$H MONEY” tattooed inside her lip. Sounded like the result of a drunken dare/bet.