predicament,
quandary, scrape (informal), mess, pickle (informal), fix (informal)
traffic
jam, gridlock, bottleneck, logjam, roadblock, queue, tailback
squeeze,
cram, pack, ram, shove, push, force, wedge, press, crush, squash, stuff
fill,
fill up, throng, pack, block, congest
stop,
seize, seize up, grind to a halt, stick, block, clog, bung up (UK,
informal)