Flannel Penguin Pajamas

flannel
A kind of soft-woven fabric, typically made of wool or cotton and slightly milled and raised
Men's trousers made of such material
a soft light woolen fabric; used for clothing
(usually in the plural) trousers made of flannel or gabardine or tweed or white cloth
A washcloth
washcloth: bath linen consisting of a piece of cloth used to wash the face and body

penguin
Penguins (order Sphenisciformes, family Spheniscidae) are a group of aquatic, flightless birds living almost exclusively in the southern hemisphere, especially in Antarctica.
short-legged flightless birds of cold southern especially Antarctic regions having webbed feet and wings modified as flippers
A large flightless seabird of the southern hemisphere, with black upper parts and white underparts and wings developed into flippers for swimming under water
Penguin is the seventh album by British rock band Fleetwood Mac, released in 1973. It was the first Fleetwood Mac album to feature Bob Weston and the only one to feature Dave Walker. The penguin is the band mascot favoured by John McVie.

pajamas
(pajama) a pair of loose trousers tied by a drawstring around the waist; worn by men and women in some Asian countries
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
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.
A pair of loose pants tied by a drawstring around the waist, worn by both sexes in some Asian countries