Meaning: restart from the beginning (definition).


Example: When the project failed, the boss said, “back to the drawing board, team.”
Origins: New Yorker magazine cartoon in 1941. (Source.) 


Rewrites: back to the drafting table (sketch book) start over with clean paper fresh doodle-pad, lads lets refresh with a mental reboot sharpen the wits and freshen the creative juices go out the door and come back in like this idea never happened
Discussion: How might we rewrite this to reflect the switch over to generating ideas on computer screens?