What is Cotton On?
1.
To realize or catch on to something - usually something in the past which you should have figured out at the time but didn't; Scottish slang.
She was giving all kinds of hints that she was interested in me, but I just didn't cotton on until I got home.
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Random Words:
1.
One who fails to use their intelligence in a common sense situation.
Tom: She had sex with her boyfriend at her job. She caught on came..