To Sponge

1. (intransitive, slang) To take advantage of the kindness of others.
2. (transitive, intransitive with on or upon) To get by imposition; to scrounge.

Synonym: blag

3. (transitive) To deprive (somebody) of something by imposition.
4. To clean, soak up, or dab with a sponge.
5. To suck in, or imbibe, like a sponge.
6. To wipe out with a sponge, as letters or writing; to efface; to destroy all trace of.
7. (intransitive, baking) To be converted, as dough, into a light, spongy mass by the agency of yeast or leaven.