Bloomers are a type of underwear constructed much like boxer shorts worn by women. Most bloomers, unlike boxers, are gathered at the bottom of the legs. Often bloomers will be decorated with ribbon or frills at the waist and legs.
Contrast with buruma, an English to Japanese to English translation of bloomer, usually identifying an over-panty, or a public garment whose purpose is to cover the panty and crotch area while leaving the maximum maneuvering room.
In Japanese they are sometimes translated as kabopan or "pumpkin pantsu" ('pumpkin panties') (see Soul Eater episode 40.)