knock up
verb
°(colloquial) To put together, fabricate, or assemble, particularly if done hastily or temporarily. See also .
"I'll just knock up a quick demo for the sales presentation."
°To awaken (someone) as by knocking at the door; rouse; call; summon; also, to go door-to-door on election day to persuade a candidate's supporters to go to the polling station and vote. See also .