Mr. Johnson will be 'subbing' [=working as a substitute teacher] at the high school.
('US') We had a 'sub' [='substitute teacher'] in English class all week.
Jones 'was subbed' (by Smith) at halftime.
(..) ASHDOWN: John Connor. Prophesized leader of the Resistance. Soldier, you put every man and woman in this sub in jeopardy... ...with your little frogman stunt. Let's get one thing straight. I don't believe in prophecy. Not when one can rewrite the future in a heartbeat. (..)2009 Terminator Salvation