No. A chalice is a type of cup; the phrase simply means a cup taht has been poisoned, and there is no oxymoron in it.
The Poisoned Chalice
Merlin - 2008 The Poisoned Chalice 1-4 is rated/received certificates of: Netherlands:9
Poisoned Chalice The UN in Iraq - 2006 was released on: USA: 5 June 2006 (United Nations Association Film Festival)
the mark of nimeuh the poisoned chalice excalibur le morte d'arthur
It should be spelled 'poisoned chalice'. A chalice is a drinking cup with a stand and stem such as used in religious ceremonies. So the term refers to being given a poisoned drink presented in an attractive looking vessel. The expression mean something that looked good when offer but turns out bad.The new job turned out to be a poisoned chalice; the old marketing plan did not work and the new one was doomed to fail. Guess who got the sack!
David McLaughlin has written: 'Poisoned chalice' 'Breaking the Parental Ties That Bind'
In the poisoned chalice. it is the 3rd episode in series 1 of Merlin.
chalice
The Communion is in a ciborium and the wine is in a chalice.
George Carlin referred to "military intelligence" as an oxymoron in one of his comedy performances.
Merlin - 2008 The Poisoned Chalice 1-4 was released on: UK: 11 October 2008 Sweden: 8 February 2009 Netherlands: 18 April 2009 Australia: 24 May 2009 Canada: 28 June 2009 USA: 28 June 2009 Germany: 24 October 2009 Japan: 26 October 2009 Hungary: 2 October 2010 Finland: 9 April 2011
Chalice Fischette's birth name is Chalice Severn Fischette.