Hulking can most easily occur due to the mixing of alcohol and marijuana or marijuana and tobacco. Mixing marijuana with another substance greatly increases your chance of hulking.
Symptoms: include, but are not limited to: extreme fatigue, nausea, drowsiness, pale to green complexion, and headache.
Fear not, for there are 3 ways to pull out of a hulk:
1. Smoke More
2. Pass Out
History: The term "hulking" was first coined in Cary, North Carolina when a man had smoked nearly an 1/8th to the face. He turned a greenish-color, thus birthing this useful term.
Now go out, I say to you, and use this term within your own smoking circles, it is a fun way to poke fun at "that guy" who goes overboard and gets sick.
"(Panting)Dude, I'm hulking hard!"