What is another word for sponging on?
Pronunciation: [spˈʌnɡɪŋ ˈɒn] (IPA) 
Sponging on, also referred to as mooching, freeloading, or leeching, is when someone takes advantage of others without contributing anything in return. Synonyms for sponging on include depending on, exploiting, begging, siphoning, extracting, and using up. These terms all imply that the person in question is taking something from someone else without providing any benefit or compensation. It's important to remember that sponging on others is generally considered unethical and should be avoided whenever possible. Individuals should strive to contribute to society and to those around them instead of taking advantage of them.
