The act of taking something into your mouth by breathing inward or by creating a vacuum with your mouth for the consumption of liquid is to suck. This is similar to drinking, but the application of pressure is important. When a person or a thing sucks, materials or liquids go in.
The word "suck" is also very popular when describing something or a situation that isn’t good. But be careful! The use of the word "suck" is slightly vulgar. It’s not recommended in formal settings.
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This page was first published on August 26, 2012. It was updated on June 18, 2015.