blabbermouth
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/ˈblæbərmaʊθ/
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An informal label for someone who talks too much or gives away secrets, with a rare technical use for a foam nozzle in airport firefighting.
Examples
The group stopped sharing plans with the blabbermouth in the corner.
Do not tell him the surprise because he is a terrible blabbermouth.
Old equipment manuals describe a variable foam nozzle as a blabbermouth.
Technicians adjusted the blabbermouth on the firefighting monitor.
She felt guilty after acting like a blabbermouth at lunch.
Similar words
yappertattletale
bigmouth
chatterbox
spray nozzle
monitor nozzle
motor-mouth
foam nozzle
gossip
Meanings
Examples
The office blabbermouth told everyone about the merger before it was announced.
Do not tell him the surprise because he is a terrible blabbermouth.
She felt guilty after acting like a blabbermouth at lunch.
The group stopped sharing plans with the blabbermouth in the corner.
Every classroom has one blabbermouth who cannot sit quietly for five minutes.
Similar words
chatterbox
gossip
bigmouth
tattletale
motor-mouth
yapperExamples
Airport crews tested the blabbermouth before the foam drill.
The crash truck’s blabbermouth swept foam across the training pad.
Technicians adjusted the blabbermouth on the firefighting monitor.
Old equipment manuals describe a variable foam nozzle as a blabbermouth.
The crew replaced the damaged blabbermouth after the inspection.
Similar words
foam nozzle
spray nozzle
monitor nozzle
Etymology
Formed from blabber and mouth. The social noun is recorded in the early twentieth century for someone who talks excessively and indiscreetly.
FAQ
What does blabbermouth mean?
Blabbermouth means a person who talks too much, especially one who repeats secrets or private information.
Is blabbermouth insulting?
Yes. It is informal and usually critical, though it can sound playful in a mild context.
Can blabbermouth be used as a verb?
No. The usual verb is blab, as in Do not blab about the plan.
What is the plural of blabbermouth?
The plural is blabbermouths.
Where does blabbermouth come from?
It is formed from blabber and mouth, and it has been used for an indiscreet talker since the early twentieth century.
What is a synonym for blabbermouth?
Chatterbox, gossip, bigmouth, tattletale, and motor-mouth can all fit, depending on tone.
Does blabbermouth have a technical meaning?
Yes. In rare firefighting use, a blabbermouth is a type of foam-dispensing nozzle.
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