(US, slang) To become slightly inebriated, but not yet quite drunk.

(informal, idiomatic) A request to receive a high five.

Alternative form of one could hear a pin drop

(idiomatic) Extremely quiet, for example, as during a lull in a normally bustling place or scene, or at a sudden dramatic or tense moment.

(UK, historical) Initialism of British Military Administration., used in the late 1940s as an overprint on certain stamps of Great Britain used in British offices in Eritrea and Tripolitania.

Initialism of British Central Africa., as overprinted on stamps of Rhodesia in 1891.

Abbreviation of German East Africa, found as an occupation overprint stamps of East Africa and Uganda in 1917 for the entire occupied territory, and Kenya and Uganda in 1921 for the part now in Tanzania.

It is not the tools we use that make us good, but rather how we employ them. / Upon failure, it is easier to blame the tools used rather than how they were employed.

(informal, idiomatic, chiefly imperative) To go away; get lost; leave.

(simile) With particular vigilance or attention, implying sharp vision.