Bottom Pajamas

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

bottom
In the lowest position
provide with a bottom or a seat; "bottom the chairs"
In the lowest or last position in a competition or ranking
the lower side of anything
the lowest part of anything; "they started at the bottom of the hill"