Mine came from a stuttering football coach. We were encouraged to dress more formally on game days.
Back in the early eighties it was considered cool to have monogramed clothing.
Game day...I'm wearing a monogramed sweater. My initials are
W-G-W. Coach saw me coming in the locker room and tried to bust on my sweater, "Looka here-ruh, dubyah
My teamates often chose this bit of stuttering to laugh about. The nickname Dub stuck.