crop up
— Verb
– English
~ appear suddenly or unexpectedly; "The farm popped into view as we turned the corner"; "He suddenly popped up out of nowhere"
couple up
— Verb
– English
~ link together; "can we couple these proposals?"
cook up
— Verb
– English
~ concoct something artificial or untrue
coop up
— Verb
– English
~ confine in or as if in a coop; "she coops herself up in the library all day"
cotton up
— Verb
– English
~ ingratiate oneself to; often with insincere behavior; "She is playing up to the chairman"
cork up
— Verb
– English
~ close a bottle with a cork
crock up
— Verb
– English
~ suffer a nervous breakdown
cover up
— Verb
– English
~ hide from view or knowledge; "The President covered the fact that he bugged the offices in the White House"
creep up
— Verb
– English
~ advance stealthily or unnoticed; "Age creeps up on you"
crank up
— Verb
– English
~ start by cranking; "crank up the engine"
crack up
— Verb
– English
~ suffer a nervous breakdown
cough up
— Verb
– English
~ give reluctantly; "He coughed up some money for his children's tuition"
cheer up
— Verb
– English
~ cause (somebody) to feel happier or more cheerful; "She tried to cheer up the disappointed child when he failed to win the spelling bee"