An interruption or a delay: What's the holdup? We're in a hurry. (noun)
An armed robbery.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "holdup" in a sentence
"Interesting trip. you guys are one tough crew to even attempt that trip with quads. next time try using an Argo 8 wheeler. they go to the tough hunting places with ease and you get there nice and clean. the main holdup is pulling all the quads out or to the road."
"In other words, that only makes sense if you think the votes for single-payer are already in place, and the only holdup is how to sell it."
"I know some of you might be wondering what the holdup is on my getting a regular podcast going."