can u judge anything from 'burger every night statement'? hw sure r u he not eating other else dirty stuff? 

Calories are calories.
Macros are macros.

I think you're confusing 'clean bulk vs dirty bulk' with 'healthy vs unhealthy'.

Clean bulking = following a set macro plan

Dirty Bulking = eating whatever you want, not calculating.

Contrary to popular belief, a diet of mcDs and fries that fits into a sensible macro plan is a clean bulk while uncontrolled amounts of brown rice and chicken is a dirty bulk.

Set a macro plan and follow it
People's ideas of eating "clean" now days is so distorted. For example people are:
1. Fearing anything that isn't low GI due to "insulin response"
2. Fearing fruit
3. Fearing milk, yet drinking whey
4. Fearing all fats
5. Fearing carbohydrates
6. Fearing catabolism if PWO shake is not taken exact 30.5343 min after exercise
.... list goes on.