1. the act of transporting goods, especially contraband or drugs, across borders or through checkpoints, typically using a person (mule) as a carrier
Usage: informal; often used in law enforcement and criminal contexts

1. present participle of 'mule': to transport and deliver goods, especially contraband, for someone else, typically for payment
Usage: informal; often used in law enforcement contexts

Examples

• The investigation revealed a muling operation that moved drugs across state lines.
• He was arrested for muling cocaine into the country.
• Authorities cracked down on muling networks at the border.
• The organization used multiple people for muling to avoid detection.
• She didn't realize she was muling illegal substances in her luggage.