Exclaim someone makes to him/herself after hearing or witnessing someone doing or saying something ridiculous and/or outrageous out of ignorance or naivety, usually the results range from mild commotion to catastrophic damage in someone's reputation.
Police: "excuse me sir, we have info that you are involved in drug trafficking."
Dad: "nope, come back with a search warrant."
Son: "Dad, is the white powder in this little plastic pouch sugar? (waving the stuff in front of everyone's faces innocently.)
Dad (to himself): "This fucking guy! I'm gonna kill him."
Police: "Can I see that, son? Ok sir, you're coming with us."
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.