Sarcastically said to imply that it's recipient has been
masterbating a lot, due to the extordinary amount of tissues in a trashcan nearby.
Also includes but is not limited to:
paper towel, napkins, toilet paper, wash clothes, and handkerchiefs.
Jack: Yo I was so
productive today
John: *notices a lot of tissues in trashcan* Yeah
I'll bet. You must have a runny nose!
Jack: Haha bro I'm not sick!
John: Well then stop killing trees
you wanker! *points to trashcan*