If you smoke like 2 blunts a day for a month, it does take more then 30 days right? SOMEONE GIVE ME PROOF. I have a bet with my friend and I say yes it will.

if youre referring to urine tests, he could clean himself in about 3 weeks time.

If mouth swab test, you can beat those almost instantly after you smoke...

hair test, 30+ spinal test 30+

How long it can be detected has many Factors.

If its a hair test then thc can be detected for ~90 days depending on length of hair.
Urine tests are about ~30 for chronic smokers, weight also plays a role here. The more fat your body contains, the more places to store thc.
With mouth swab just don't smoke before the test and you should be fine.
It can be detected in blood for about ~2 weeks.

They just developed new mothods, afaik, i guess it were 30+.

THC will show up in blood tests long after it no longer shows up in urine tests. The standard time for a urine test is 3-4 weeks if you're a regular, somewhat light smoker and about double that if you're a regular heavy smoker. 2 blunts a day for a month... I'd give that 4-5 weeks minimum for a urine test. I can guarantee you that you will have trace amounts of THC and fail a urine test after 2 blunts a day for a month with 30 days break.

you got that backwards. after the thc leaves the blood stream it exits the body in the form of urine and solid waste. also you cant really tell how much thc you get from a blunt without filling in the variables. people smoke differently (you hold it in for 20 seconds?), their capillaries work differently (do you cough? if so you are getting more into your blood stream next time you hit it), finally different grades of pot vary by more than you would believe. for instance high grade medical is several times more potent than south of the border schwag.

There's a lot of factors involved but odds are you won't pass a UA after 30 days if you smoke that much. If you consistently drink a lot of fluids the whole month that could drop it below a month, depends on a lot of other factors though.

Drink a ton of lemonade for 3 days before the test.
worked for me plenty of times

"THC is fat-soluble and gets stored in the fat cells. Since
fat cells secrete THC metabolites over an extended period
of time, cleaning out the body from this substance is
difficult."

better start some cardio.

What he said. Merely drinking large amounts of fluid will not clear the thc from your body. The only way to do so is to exercise.