cotton on to
The phrase "cotton on to" means to suddenly or gradually understand, realize, or become aware of something. It is often used to describe the process of grasping or comprehending a concept, idea, or situation.
English is confusing! Why do people say "Pardon my French" when they are speaking English? Because of idioms!
An idiom is a phrase or expression that usually presents a figurative, non-literal meaning attached to the phrase. Does that sound fun? It can be!
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