i think theres a difference between someone who smokes pot and a full blown pothead. pothead is like the guys in dude wheres my car. irresponsible, forgetful, stupid humor, unreliable but fuckin hilarious people.
watch dude wheres my car, how high, cheech and chong or half baked
someone like me who take gravity bong hits before 6 am for work..lunch break...after work...before dinner...after dinner...for each tv show that comes on next...before i go out anywhere...and before bed.
That godfather blunt (9 grams) didnt even get me that blazed...lets go take a few bingers of that sick New York City Sour Diesel.
One who thoroughly enjoys the mary jane. Perhaps they have been accused of loving weed more than their significant other. They smoke when they wake up, before work, during work, if possible, and as soon as they get home. They never run out of weed because they are always planning ahead.
In short, a professional weed smoker.
If you just looked up stoner/pothead on urbandictionary.com while smoking, then you are a pothead.