Definition of armchairs:
(n) :
A chair with supports for the arms or elbows.
(n) :
(figurative) A position removed from that which one is
(adj) :
(figuratively) Remote from actual involvement, including a person retired from previously active involvement.
(adj) :
(figuratively, derogatory) Unqualified or uninformed but yet giving advice, especially on technical issues, such as law, architecture, medicine, military theory, or sports; relating to such advice.
(v) :
To create based on theory or general knowledge rather than data.
(v) :
To theorize based on analysis of data that was gathered previously; to reflect.