adverb taking the 'to' particle
in swarms; in great crowds; plentifully
Describes a large number of people or things gathering or appearing all at once. Often used with いる or 来る. Sense 2 (plentifully) is a natural extension of the crowd sense.
Tourists came flooding in in great numbers.
minor actress; bit-part actress; female extra
Dated colloquial abbreviation of わんさガール, referring to a female extra or bit-part actress in film or TV. Rarely used today.
See also: わんさガール
On festival days, tourists come pouring in.
The park was swarming with children.
In old movies, many minor actresses appeared as extras.
There's a mountain of food in the fridge.
The venue was packed with people.
わんさか is a more emphatic, casual variant of わんさ, both meaning 'in droves', with わんさか often sounding slightly more colloquial.
minor actress; bit-part actress; female extra
Kana-only adverb and noun; no kanji spelling is given.
The origin is uncertain. It may be a sound-symbolic word (mimetic) evoking a bustling, swarming image. The dated noun sense is an abbreviation of わんさガール.