Green’s Dictionary of Slang

1. (US) a hotel porter.

1919		Perrysburg Jrnl (Wood Co., OH) 22 May 2/1: A bell-hop appeared with the usual evening tray [...] His work done, the hop departed.
1939		R. Chandler ‘I’ll Be Waiting’ in Red Wind (1946) 127: She told the hop to be back in half an hour for her suitcases.
1949		Monteleone Criminal Sl. (rev. edn) 122: hoppers Hotel bell boys.
1953		R. Chandler Long Good-Bye 301: He wrote a letter to me which got mailed. A waiter or hop in the hotel was going to sneak it out and mail it for him.
1964		S. Woodward Paper Tiger 111: He was to get ten dollars for the job. This sum might win sneers from a present-day hopper but it was good money for New London in the twenties.
1989		(con. late 1940s) Courtwright & Des Jarlais Addicts Who Survived 168: He couldn’t smoke opium on a hop’s salary. So he started to pop.
2005		J. Stahl I, Fatty 187: [...] walking into hotels. The way the ’hops run over, the manager’s smile.

2. a delivery man.

1960

P. Rabe Murder Me for Nickels (2004) 106: In two places our service hop with the change of records was late.