American, very informal

to touch someone's body without their permission in order to get sexual excitement.

He saw she was drunk and tried to cop a feel.

• best thing since sliced bread
• be stuck in a groove
• be stuck in a rut
• be tailor-made
• be talking out of both sides of mouth
• be talking out of both sides of your mouth
• be talking through hat
• be talking through your hat
• be tanked up
• be ten a penny
• be thankful for small mercies
• be that as it may
• be the armpit of the universe
• be the armpit of the world
• be the bee's knees
• be the best of a bad bunch
• be the best of a bad lot
• be the brains behind
• be the brains behind something
• be the cat's whiskers
• be the dead spit of
• be the dead spit of someone
• be the end of the line
• be the end of the road
• be the end of the world