Ex-NFL star Bill Romanowski says he honestly had no idea the term "boy" could be used as a racial slur -- and says he apologizes to Cam Newton from the bottom of his heart.
Romanowski joined the guys on the "TMZ Sports" show (airs tonight at 9PM PT on FS1) -- and we asked him straight up about the tweet that many people condemned as racist.
The tweet in question -- Bill had tweeted to Cam Newton, "The world doesn't revolve around you, boy!"
Bill says he takes full responsibility for using the word -- and addresses Chad Johnson who had tweeted -- "Boy?