mooch

Short definition from Wiktionary

Verb

1. 1
   To wander around aimlessly, often causing irritation to others.
2. 2
   To beg, cadge, or sponge; to exploit or take advantage of others for personal gain.
3. 3
   To steal or filch.

Noun

1. 1
   An aimless stroll.
2. 2
   One who mooches; a moocher.
3. 3
   Synonym of Scaramucci (“unit of time”).