deadliest

Has the same definition as dealy or dead. Deadliest is someone who is very powerful and quite deadly.

"That's one of the most deadliest person in the world."

Deadliest Catch

Very similar to a dirty Sanchez, However with this instead of running your finger under her/his nose you will fish hook them with that dirty finger

when I was hitting from the back I gave her the deadliest catch.