1. drawing in liquid or air by creating a vacuum with the mouth
2. very bad or unpleasant
Usage: slang; informal

1. the action of drawing something into the mouth by creating a vacuum

Examples

• The baby was sucking on her thumb.
• He made a sucking sound through his teeth.
• The sucking motion of the vacuum cleaner picked up all the dirt.
• That movie was really sucking – we left halfway through.
• The sucking of the straw made a loud noise.
• She heard the sucking sound of boots in the mud.