Oatmeal Effect
When two people have the same dumb idea at the same time and then both say it like they were both cursed by the same dumb god.
'We both thought of the same dumb joke at the same time, and we both said it like we were cursed by the same dumb god.'
'We both had the same dumb idea at the same time, and it was like we were both cursed by the same dumb god.'
'We both came up with the same dumb plan at the same time, and it was like we were both cursed by the same dumb god.'