A combination of the words hash and harassment. Harashment is peer pressure to do to drugs, typically referring to weed or hash, hence the name. When using the word in a sentence, you can change the tense of the word to make it harash, harashed, harassing, etc.
1) The harashment was intense at the party last night. I ended up giving into it.
2) Guy 1: Bro I picked up some kush. Wanna come over tonight?
Guy 2: Stop harashing me!