I genuinely have given two words to the English Language;
Acid Jazz:
When trying to explain the new type of music some friends were putting together, another acquaintance then 'borrowed' the term for the name of his new record company, which in turn was then used by the music industry of the time.
Karaoke:
Long story, but we acquired the first and only Karaoke system in Europe back in 1988.
(It ran with a 24" CRT television and 12" laser discs, 12 songs per disc, each disc cost £100, it took us several hours to set it all up)
We set up a club and tried to come up with a name for the idea, "Sing along a record" and "Club Singing" just did not work, so we called it "Okey Kokey Kara Oke"
We literally had them queuing around the block for 9 months until an importer than bought in a load of new generation Japanese Karaoke machines that ran on the 'new' (and much cheaper) CD/DVD format and within a month every pub in the land had a Karaoke night.