Examples from literature

• Meanwhile he is whistling, and his batman is making sparks fly out of the buttons, which he cleans with glass-paper and gun-cotton just outside the door. 
• So I told my batman to get hot water brought there in the mornings. 
• Then, as time went on, I was able to get a man to take over the duties of a batman, and I finally obtained a chauffeur to run my side-car. 
• There I was met by the General's grand old batman. 
• You should have seen me this morning, sitting on the gun-seat while my batman cut my hair.