As far as I know, if something is done in a careless way we can call it a slapdash. Is there anyphrasal verb which results in such a thing? I mean the verb we use when we have done something quickly and carelessly, as in, 'I just made this powerpoint...'.
I just threw it together.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.
How about I knocked up/off a Powerpoint presentation?
Many thanks to all dear posters!
I had, for no reason, thought that 'to whip up', and 'to rustle up' were just used for meals.
How about money? If the cash machine were broken and you had to rummage around for cash in your house, would you say I managed to rustle up ten quid?
"Knock" off is also used for copies of designer goods. It's vaguely possible that if you say you knocked off the presentation, someone might think you took an existing presentation someone else had created and changed it just a bit (putting your logo on instead of theirs, whatever).