The Free On-line Dictionary of Computing (19 January 2023):

some random X

    Used to indicate a member of class X, with the
   implication that Xs are interchangeable.  "I think some random
   cracker tripped over the guest timeout last night."

   See also J. Random.

   [Jargon File]

   (1995-03-03)


The Jargon File (version 4.4.7, 29 Dec 2003):

some random X
 adj.

    Used to indicate a member of class X, with the implication that Xs are
    interchangeable. “I think some random cracker tripped over the guest
    timeout last night.” See also J. Random.