the.com/freebie

means Something given to you free of charge, typically to entice you into buying or coming back for more.

from American slang, likely built from 'free' plus the jaunty '-ie/-y' ending English loves to tack onto words to make them chummy (think 'newbie' or 'cutie'). It surfaced in print in the early-to-mid 20th century, first associated with press agents, promoters, and circus-trade talk — people whose whole job was handing out passes and samples to grease the wheels of publicity. The word carries that hustle in its bones: it was never really about generosity, just a wink shared between people who both know a favor is being banked.