What does “blow your top” mean?

To be overcome with emotion — delight first, anger later.

Entry · catalog no. 7402

blow your top

/ /ˌbloʊ jər ˈtɑp/ /bloh yer TOP

verb · Harlem, New York City · 1930s

✓ Verified

To be overcome with emotion. In 1930s jive the feeling was delight — a record so good you blew your top. The mainstream kept the explosion and turned it to anger.

“You'll blow your top when you hear this one.”

Origin & Attribution

Harlem jive of the 1930s. Calloway's Hepster's Dictionary (1938) records "blow the top: to be overcome with emotion (delight)." As the phrase crossed over through the 1940s and 50s, the emotion soured: mainstream American English kept blowing its top, but only in anger — the joy stayed uptown.

1938

Defined in Calloway's Hepster's Dictionary as delight

1950s

Mainstream use narrows to anger

Region of origin

West

Midwest

N.East

South

The Northeast

Harlem, New York City · 1930s

Spoken by

Harlem swing musicians and hep cats

$BLOWYOThe Record · cultural traction

▲ Steady

88 yrs

ahead of the mainstream

55/100

peak cultural energy

Introduced to English by the culture — logged here before the mainstream caught on.

Cultural usage — the recordMainstream search interest

First used

1938

in the culture

Cultural energy indexed from documented usage, search interest, and citation frequency. The recorded date is the archive’s permanent point of record.

Hear it spoken

By region — how it actually sounds

@bxgriot

The Bronx, NY

@phillyanne

Philadelphia, PA

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Citations & Sources

■

Cab Calloway, Hepster's Dictionary: Language of Jive

1938

■

The New Cab Calloway's Hepster's Dictionary

1944

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