Knows One's Onions

What is Knows One's Onions?

to be thoroughly knowledgeable or competent in a subject area

Look at her working that poll, she really knows one's onions.

See dig, feelin it, with it, on it

Italian Foot Bone

1. When a woman is giving a man fellatio while pinching both his nipples and inserting both her big toes into his anus. Yea dude, Matt and..

Vbit

1. Vacation-Bound Infrequent Traveller, the people who forget to take their laptops out of their bags, take their shoes off, scream at the ..

Oakley Tan

1. When one wears their Oakley's for an extended period of time that there is a lighter shade of pigmentation under the area where the..

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Knows One's Onions Edit Meaning