to cross someone's mind

to force one's way through, to impose oneself

(informal) to get down to business, to get down to brass tacks, to get down to the nitty-gritty

to go unnoticed, to pass unnoticed, to escape notice

to pass under the yoke

pedestrian crossing, crosswalk

passenger pigeon

(transitive) to go through, to go over, to review

(transitive with pour) to place an order (for), to order

(informal) to perform fellatio (in exchange for some academic or professional benefit)