present participle of know the difference between one's ass and a hole in the ground

(slang) the state of (a teenager etc) being grounded / A Rastafarian meeting.

A climbing vine, Apios americana, of eastern North America, having fragrant brownish flowers and small edible tubers. / Any similar plant having underground tubers.

The foundation; the basic or fundamental parts that support or allow for the rest.

(baseball) A ground ball. / A fruit that has fallen to the ground rather than being picked; a windfall. / One of the large stones forming the base of a Cornish hedge.

Water that exists beneath the earth's surface in underground streams and aquifers.

(idiomatic, figuratively) To create a foundation; to provide the basics or fundamentals.

Innovative; new, different; doing something that has never been done before.

The point at which construction begins, by digging into the ground. / A ceremony to mark the beginning of construction.

A red-brown marmot, Marmota monax, native to North America. / (rare) The aardvark.