#5 Juice or Juicing
What it means: Opening up one's forehead with a sharp object to make it seem as if one's opponent has beaten you bloody. Can also refer to legitimately being busted open (often called juicing the hard way.)
Also known as: Blading (as in cutting yourself with a blade), donning a crimson mask.
Likely origin of the term: Juicing comes from pro wrestling promoters who realized that real blood made the scripted matches look more entertaining. The juice refers to blood flowing like a juice.
Juicing is rarely seen in pro wrestling these days. The WWE has gone PG in most of its programming, and only on Pay Per Views are you likely to see anyone bleed at all. Likewise, Ring of Honor strictly forbids juicing in all but the rarest of matches.
During the 1970s, with grindhouse horror movies taking attention away from pro wrestling, juicing hit its peak, and it's hard to find a match from that era that doesn't involve one or both men bleeding.
Superstars like Hulk Hogan, Ric Flair, Triple H & Mick Foley are all known for donning the crimson mask one too many times.