cup of coffee

Based on the idea that the player was only there long enough to have a cup of coffee.

cup of coffee (plural cups of coffee)

1. (ice hockey, baseball, slang) The situation where a minor league player comes up to the major league team for a short period of time.

   I was up for a cup of coffee once; those were the best six days of my career.

2. (figuratively) One’s personal preference.
   • 1963, Southern Economist (volume 2, page 137)

     Since social anthropology is not my cup of coffee, I leave it to the research scholars to discover the true significance of this transformation.

3. Used other than with a figurative or idiomatic meaning: see cup,‎ coffee.

• (preference): cup of joe, cup of tea, see also Thesaurus:predilection