You kiss your girlfriend with that mouth.

He was speaking out of both sides of his mouth during the meeting.

I always stick my foot in my mouth when I try to make a joke.

I can't believe you took the words out of my mouth!

He always puts his foot in his mouth when he talks about politics.

He always ends up sticking his foot in his mouth whenever he tries to make a joke.

He always sticks his foot in his mouth when he tries to tell a joke.

He stuck his foot in his mouth by making an inappropriate comment.

He always ends up putting his foot in his mouth whenever he tries to make a joke.

She laughed on the wrong side of her mouth when she realized she had lost the bet.