Little Boy Pajamas

little boy
(Little Boys) "Little Boys" is the fourth episode in the third season of the television series How I Met Your Mother and 48th overall. It originally aired on October 15, 2007.
"Little Boy" was the codename of the atomic bomb dropped on Hiroshima on August 6, 1945 by the Boeing B-29 Superfortress Enola Gay, piloted by Colonel Paul Tibbets of the 393d Bombardment Squadron, Heavy, of the United States Army Air Forces. It was the first atomic bomb to be used as a weapon.
CODENAME of the A-BOMB dropped over Hiroshima on 6 August 1945; see MANHATTAN PROJECT, BIKINI, ENIWETOK, FALLOUT, NUKE, OVERKILL, BIGGER BANG FOR THE BUCK, CBR.

pajamas
A suit of loose pants and jacket or shirt for sleeping in
Pajamas, also spelled pyjamas (see also spelling differences) can refer to several related types of clothing. The original paijama are loose, lightweight trousers fitted with drawstring waistbands and worn in South and West Asia by both sexes.
(pajama) a pair of loose trousers tied by a drawstring around the waist; worn by men and women in some Asian countries
A pair of loose pants tied by a drawstring around the waist, worn by both sexes in some Asian countries
(pajama) (usually plural) loose-fitting nightclothes worn for sleeping or lounging; have a jacket top and trousers