(informal) to shoot the breeze, to chew the fat, to chat

totally, completely, on all counts

(figuratively) to reinvent the wheel (to attempt to devise a solution to a problem when a solution already exists; to do work unnecessarily when it has already been done satisfactorily by others)

(figuratively) in the same vein

(informal, figuratively) not to be born yesterday, not to have fallen off the turnip truck, to have been around

(vulgar) stupid, dumb; (as an intensifier) pesky, damned, bloody, fucking

(informal) off the mark, wide of the mark, off-beam, off-the-wall; beside the point, beside the mark

(informal) in the long run, over time

(informal) (transitive with de) to be fed up to the back teeth (with)

(informal) to be expensive, cost an arm and a leg