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1. To clog or obstruct something. Ugh, who jammed up the printer this time?
2. To quickly move or push something upwards. In this usage, a noun or pronoun can be used between "jam" and "up." Hey, be careful! If you jam those boxes up, you'll break something. I jammed the stick up a few times but couldn't get the ball out of the tree.
3. To cause something to clog or obstruct something else. In this usage, a noun or pronoun can be used between "jam" and "up." Ugh, what jammed the printer up this time? Oh, some crumpled pieces of paper.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
jam something up something
to thrust something up something. She poked the broom handle up the chimney, hoping to force the bird to fly out. She jammed it up a few times, but it had no effect.
jam something up
1. to clog up something; to impede or block the movement of or through something. Rachel jammed traffic up when her car stalled. All the leaves and branches jammed up the sewer.
2. Fig. to force something upwards in haste or anger. Who jammed the window up? Wally jammed up the window and nearly broke it.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
1. To become blocked, congested, or clogged: The traffic jammed up on the highway.
2. To cause something to become blocked, congested, or clogged: Some hair jammed the pipes up. You jammed up the drain with leftover food.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. and jammed mod. in trouble. (From in a jam.) He got himself jammed up with the law.
2. mod. glutted; full of food or drink. I’m jammed up. I can’t eat another bite.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.