1. present participle of slang: using slang or informal language
Usage: informal
2. present participle of slang: engaging in a heated verbal argument or exchange of insults
Usage: British; informal

Examples

• The teenagers were slanging in the hallway between classes.
• He’s always slanging when he talks to his friends.
• The two neighbors were slanging at each other over the fence.
• Stop slanging and speak properly in class.
• They were slanging back and forth about the game results.
• The comedian was slanging throughout his entire routine.