Blue streak
noun, slang
noun, slang ·Moderate ·College level
Definitions
Noun
- 1 A great deal of fast talking, cursing, lying, or similar. informal
"to talk a blue streak"
- 2 A trace left by something that is too quick to see.
"To pass[…] with such rapidity as not even to leave a ‘blue streak’ behind him"
Example
More examples"interspersing his vehement comments with a ‘blue streak’ of oaths"
Etymology
From the afterimage of a stroke of lightning, which looks like a blue streak across the sky.