Entry · catalog no. 9039
jam
/ — /pending
verb · northeast · 2026
✓ Verified
1.
To play improvised music with others, following feel rather than a chart. As a noun, the music that comes out of it.
“They cut the lights and jammed until four in the morning.”
Origin & Attribution
Black jazz musicians, 1920s-30s. The jam session was the proving ground — after the paying gig ended, players met to trade choruses and find out who could really play. Calloway's 1938 dictionary lists it both ways: improvised swing music, and to play such music. Rock bands took the word wholesale a generation later.
Region of origin
West
Midwest
N.East
South
The Northeast
northeast · 2026
Spoken by
northeast
$JAMThe Record · cultural traction
▲ Rising0 yrs
ahead of the mainstream
12/100
peak cultural energy
Introduced to English by the culture — logged here before the mainstream caught on.
Cultural usage — the recordMainstream search interest
First used
2026
in the culture
Recorded here
2026
point of first record
Cultural energy indexed from documented usage, search interest, and citation frequency. The recorded date is the archive’s permanent point of record.
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The Bronx, NY
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Philadelphia, PA
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Citations & Sources
■
+ Cite a sourceCab Calloway — Hepster's Dictionary: A Guide to the Language of Jive — book · 1938
submitted
See also