Kid In Pajamas

pajamas
A suit of loose pants and jacket or shirt for sleeping in
(pajama) (usually plural) loose-fitting nightclothes worn for sleeping or lounging; have a jacket top and trousers
(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
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.

kid
Deceive or fool (someone)
pull the leg of: tell false information to for fun; "Are you pulling my leg?"
be silly or tease one another; "After we relaxed, we just kidded around"
Deceive (someone) in a playful or teasing way
child: a young person of either sex; "she writes books for children"; "they're just kids"; "`tiddler' is a British term for youngster"