1. Sillysaurus is a word very similar to the expression silly goose. It only differs in the sense that the said person is being so silly it's as if they were from the dinosaur era. It is used to describe someone acting very silly. In other words if someone is being funny but ridiculous, they're being a sillysaurus.
2. Sillysaurus can also be used to refer to someone who often behaves in a very silly but funny way.
Maeve: Hey do you know what an archeologist is?
Daniel: Yeah....Someone whose career is in ruins!
Maeve: Hahahahahah oh you're such a sillysaurus
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the USCoast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.