soapsuds [plural] [noun] - the mass of small bubbles that form on the surface of soapy water(US) Suds can also be a mass of small bubbles that forms on the surface of any liquid.Suds is also US dated informal for beer.I'll buy one more round of suds, then we've got to go.
SUDS
Meaning of SUDS in English
Cambridge English vocab. Кембриджский английский словарь. 2012