Definition of "SOB"

(countable, vulgar, slang) Initialism of son of a bitch.

(uncountable) Initialism of shortness of breath.  examples

(aviation, in the plural) Initialism of souls on board.  examples

(speedrunning) Initialism of sum of best.  examples

(business) Initialism of start of business.  examples

(business, finance) Initialism of share of business.  examples