give 'er bickies

Newfoundland 'bay' slang for "go for it".

or

Newfoundland 'bay' slang for putting the pedal to the metal.

John: I'm not sure if I can shoot this tequila
Jane: Just give 'er bickies!

or

"If we don't want to be late, you're going to have to give 'er bickies on the highway"

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