on the sly -Idioms

Idioms

on the sly

secretly

We went to the restaurant on the sly so that nobody would know where we were.

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on the spur of the moment

on the strength of (something)

on the tip of one's tongue

on the trail/track of (someone or something)

on the up-and-up (up and up)

on the verge of (doing something)

tip the scales at (something)

out of all proportion

by all appearances

stick it to (someone)

begin to see the light

My Account / Test History

Fact
At one 'feeding', a mosquito can absorb one and a half times its own weight in blood. .. More >>

Verbal Reasoning