Anon is unhappy with the English language
10d 7h ago by piefed.zip/u/RmDebArc_5 in greentext@sh.itjust.works from media.piefed.zip
Skill issue

> Another turning point, a fork stuck in the road
What the fuck was John Greenday smoking when he wrote this? Who sticks forks into roads?

Nobody gives me the raspberry!
Jam = sticky
Sticky things clog. Jam when it gets stuck somewhere thickens as it dries into a rubbery mess.
Hence the concept of something being "jammed" becoming synonymous with clogged, blocked, disrupted.