Search Result for "fum": 

The Collaborative International Dictionary of English v.0.48:

Fum \Fum\, v. i. To play upon a fiddle. [Obs.] [1913 Webster] Follow me, and fum as you go. --B. Jonson. [1913 Webster]
The Jargon File (version 4.4.7, 29 Dec 2003):

fum n. [XEROX PARC] At PARC, often the third of the standard metasyntactic variables (after foo and bar). Competes with baz, which is more common outside PARC.
The Free On-line Dictionary of Computing (30 December 2018):

fum At Xerox PARC, often the third standard metasyntactic variable after foo and bar. baz is more common outside PARC. [Jargon File] (2003-09-24)