You use the expression 'It Takes Two to Tango' to indicate that two involved parties need to act cooperatively if an endeavor is to succeed. The term is also used to denote that both people involved in a negative situation are responsible.
Example of use: “We really need to come to a compromise here; after all it takes two to tango.”
Interesting fact about It Takes Two to Tango
The expression 'it takes two to tango' is a direct reference to the fact that two people must be involved for a South American dance called the tango to occur at all.
