1sponge 
/ˈspʌnʤ/ noun
plural spong·es /ˈspʌnʤ/ noun 1 [count] : a piece of light natural or artificial material that becomes soft when it is wet, is able to take in and hold liquid, and is used for washing or cleaning
▪ a kitchen sponge — sometimes used figuratively ▪ His mind is (like) a sponge. [=he remembers a lot of information easily] — see picture at kitchen 2 [count] : a type of sea animal from which natural sponges are made 3 [count, noncount] Brit : sponge cake
▪ a slice of sponge 4 [count] informal + disapproving : someone who gets something from someone else without doing or paying anything in return : sponger
▪ He's a lazy sponge. 5 [count] : a device like a sponge that is used by women to prevent pregnancy
▪ a contraceptive sponge
▪ a kitchen sponge — sometimes used figuratively ▪ His mind is (like) a sponge. [=he remembers a lot of information easily] — see picture at kitchen
▪ a slice of sponge
▪ He's a lazy sponge.
▪ a contraceptive sponge
