The term 'so and so' is a slang expression used to refer to someone who is not known or whose name is not remembered. The crossword solutions for this term are NOTES (5 letters), JERK (4 letters), and JERKFACE (8 letters). NOTES is an acronym for 'Not On The Same Level, ' which is used to describe someone who is not as good as another person. JERK is a slang term for someone who is rude, inconsiderate, or unkind. JERKFACE is an even more derogatory term for someone who is extremely rude or obnoxious.