A "corner booth" refers to a seating arrangement in a restaurant or café that is placed in a corner and has a bench or booth-style seating on two sides, forming a triangular space. Full definition
It's a given that when you travel you'll find yourself in a variety of lighting conditions, from bright glare of the sun to dark corner booth of a coffee shop. (thewirecutter.com)
I thought I was the only nutty woman beaming at every pregnant belly i see or nodding knowingly at every nursing momma i spot on shaded park benches or tucked away in corner booths at the cafe. (attachmentparenting.org)
The type of unshaven, glowering Travis Bickle type (he even jokingly refers to himself as «Robert De Niro» at one point) who sits in a bar's corner booth ranting and raving to himself, Joseph is such a cartoon creep that Hannah's kindness to him immediately reeks of screenwriter contrivance. (slantmagazine.com)