Early 20th century abbreviation of trousers; the phrase drop trou is first recorded in the 1960s.

noun. : a pit in the form of an inverted cone or pyramid having a pointed stake in the middle and forming one of a group constructed as an obstacle to the movements of an enemy usually used in plural.

(Trou is short for trousers.) I hate having to drop trou during the physical examination at the doctor’s office. See also: … drop your trousers.

Drop-trou meaning (by extension) To strip, undress, get naked. verb. (US, intransitive) To drop one’s trousers and/or undershorts; to moon.

(US, intransitive) To drop one’s trousers and/or undershorts; to moon. (by extension) To strip, undress, get naked.

noun. an opening through something; gap; aperture: a hole in the roof; a hole in my sock. a hollow place in a solid body or mass; a cavity: a hole in the ground.

A trowel is a small garden tool which you use for digging small holes or removing weeds. A trowel is a small tool with a flat blade that you use for spreading things such as cement and plaster onto walls and other surfaces.

A blind hole refers to a hole that is reamed, drilled, or milled to a specified depth without breaking through to the other side of the workpiece. engineering.

crater. noun. a large round hole in the ground caused by an explosion.

The O.E.D. files this usage under the second sense of hole, defined as a perforation and an aperture passing through anything. The first sense of hole (a hollow place, cavity, excavation) seems to imply something with a bottom; its earliest attestation comes from a land grant charter written in 946.