1. A farewell, or conventional expression used at parting, used in order to leave a place of business, meeting, or social gathering in order to arrive at home or other place of worship prior to sunset on Friday in accordance with the Jewish observance of Shabbat. Using this term relieves the user of having to explain why they must be leaving earlier than everyone else.
2. An excuse used for leaving any place before scheduled departure time regardless of type of activity.
The act of solely eating shabu shabu dishes, anytime, anywhere. This phrase was coined by Natsuki (natsukitheman) in Abroad in Japan's video "Staying in Japan's $100 Igloo Hotel vs. $1,000 private bath Inn" published on June 13 at 23:00 UTC
The act of cooking/doing Shabu-Shabu (a Japanese boiled dish)
Person 1: "What are you doing with that food and water?"
Person 2: "Ah, I'm just shabbing"
Person 1: "Cool!! Can I have some?"
Person 2: "Only if you perform a rap in a volcano."