Egging
Egging is 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”, when mischievous teens rub soap bars on car windows, throw eggs at houses, adorn trees with toilet paper, and run away after ringing doorbells. In some areas of Queens, New York, “Cabbage Night” involved throwing rotten fruit at various neighbors, cars, and buses.
Wikipedia
Egging (verb)
present participle of egg
Egging (noun)
The act of pelting with eggs.
Agging (adjective)
egging on; raising quarrels
Wiktionary