1) Act of vandalism 2) Bombarding on Halloween 3) Mischief Night activity 4) On a halloween rampage 5) Prodding 6) Type of Activism Found on https://www.crosswordclues.com/clue/egging
Egging refers to the act of throwing eggs at houses, cars, or people. Egging is a criminal offence in most areas. The eggs are usually raw, but are sometimes hard-boiled or rotten. Egging is sometimes associated with certain events and holidays. For example, in parts of England and the United States, October 30 is referred to as `Mischief Night,..... Found on http://en.wikipedia.org/wiki/Egging