Not touch somebody/something with a bargepole
Definition 1 of 1
Pro Tip 1/3Strong Avoidance
Expresses a very strong decision to avoid something because of negative qualities or consequences. 
That restaurant has failed several health inspections; I'd not touch it with a bargepole.
Pro Tip 2/3Figurative Meaning
The phrase is not literal; it's an idiomatic expression to emphasize avoidance without actual poles involved. 
His last project was a disaster, so I wouldn't touch his new scheme with a bargepole.
Pro Tip 3/3Colloquial Use
Used in casual conversations, may not be suitable for formal contexts. 
She's so unreliable; I wouldn't touch her offer with a bargepole.