Eddie Murphy did his first stand-up routine in decades Sunday night at the Mark Twain Prize ceremony, and the punchline -- and punch -- was saved for Bill Cosby. 

In receiving the Mark Twain Prize for American Humor -- which Cosby himself was awarded in 2009 -- Murphy on Sunday marked the occasion with a famous impersonation (Cosby), putdown (Cosby) and reminder (Cosby) that the embattled comedian's awards elsewhere have been stripped.

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Murphy -- as a Washington Post story from the Kennedy Center reminded -- hasn't done a standup routine in public in 23 years, and he also declined to do a Cosby joke/impression at the 40th annual "Saturday Night Live" bash in February.

Check out the clip's beginning and end -- a quick outtake of Murphy's Cosby routine appears toward the end. Full "Twain" broadcast will air on WNET/13 Nov. 23 at 9 p.m.