B-52

Etymology
Named for 's, a bomber aircraft used in the Vietnam War.

Noun

 * 1) A cocktail shooter consisting of three distinct layers of coffee liqueur, Baileys and Grand Marnier.
 * 2)  A combination of diphenhydramine, 5 mg of haloperidol, and 2 mg of lorazepam, widely used for the sedation of acutely agitated patients.

Etymology
From, a type of bomber aircraft. Alludes to the insect flying towards the subject if threatened.

Noun

 * 1) a large cockroach (usually refers to the American cockroach)