Wiktionary
adv. 1 Without paying. 2 (context figuratively English) Without effort; as a useful side-effect of something that was to be done anyway.
WordNet
adv. without payment; "I'll give you this gratis" [syn: gratis, free of charge]
Wikipedia
"For Free" is a single by DJ Khaled featuring Canadian singer/rapper Drake, released on June 17, 2016 by We the Best Music Group and Epic Records as the lead single from DJ Khaled's ninth studio album, Major Key. The song was produced by Nineteen85 and Jordan Ullman. It was later revealed that the song's full name is "Fuck Me For Free".
Usage examples of "for free".
I guess it would be hard to insist on a cover charge out front if wily patrons could go around the back and get in for free.
There's knowledge in that building that belongs to the Galaxy--for free.
Mike was scandalized at the notion that anyone would try to sneak in for free, for a single day.
One compartment was fitted as a gymnasium, with equipment that could be adapted for gee or for free-fall.
One compartment was fitted a gymnasium, with equipment that could be adapted for free-fall.
There was a short waiter there named Walter who, it was said, fed homeless students for free, the sort filling up San Francisco who would one day cease being the Beatniks, as Herb Caen termed them, and become the Haight-Ashbury hippies.