blue streak
noun
1.
something moving very fast:
They traveled like a blue streak through Italy.
2.
continuous, rapid, or interminable speech:
to talk a blue streak.
Origin
1820-30,
Americanism
Examples from the web for
blue streak
Joss was talking a
blue streak
to the receptionist, who was listening amiably.
There is a bright
blue streak
across the tops of the trees at times.
My foreman was a rough talking boss, he would talk a
blue streak
of cuss words.