When you have been going hard for several years on end with the booze and the dope, your brain becomes gummed up. That means its working, but just barelyyy. The gears are spinnin but just fast enough to keep from stalin out.
Pat: "dude why can you barely even figure out what going on?"

Kyle: "dude im all gummed up, i got all smoked up last night and can barely function right now"
by PP the hound December 29, 2010
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1. To mess up
2. To get in a sticky situation
3. To fuck up
Peter we lost this round because of you, stop gumming up the reed.

Had you used protection, we wouldn't be in this mess. Jesus Peter! you really gummed up the reed this time.
by Prepfin4 December 7, 2016
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an easy way to say shut the fuck up you look like an idiot.
you can also use it as an insult.
1. Andrea shut your dumb dumb bubble gum lookin ass up
2. Emma get your dumb dumb bubble gum lookin ass back in here
by Dominiquxee December 10, 2018
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