pianosaurus 

a band that performed delightful music using simply toy instruments. alternative defn is the purple toy piano itself, the pianosaurus.

"hey bob, let's go see pianosaurus play tonight, right around the corner."
"honey, don't bang too hard on the keys or you'll break your pianosaurus."

pianosaurus by Regina February 17, 2004

pianosaurus 

The old pianist who has played at the hotel for forty years. Last new song he added to repertoire was in 1948, about the last time he purchased a new tuxedo.

"I thought that pianosaurus was extinct!" "Can't be! The hotel brochure says "Live Music Nightly.""

pianosaurus by Voltboy May 17, 2006

pornosaurus

Pornosaurus is a mythical dinosaur which appears on late night german TV and has sex with desperate women, also he has a lime-green ejaculate, which shock many, especially with the volume and colour of substance produced.

"How the hell did they work out he (Pornosaurus) has green cum!! UHHHHH!

pornosaurus by Sudo Nymm February 10, 2005

Pornosaurus

An old, outdated and therefore enormous computer reserved only for porn. This phenomena generally occurs because one does not wish to soil their new computer with viruses, embarrassing history, and jizz.

Hey why is the touchpad on Matt's old computer covered with like old honey or someth... oh wait... fucking pornosaurus...

Pornosaurus by Im not giving my real fucking December 3, 2013

peadosaurus

A form of dinosaur decended from the tryannosaurus that sexually abused baby dinosaurs and then killed and ate them afterwards.

Peadosaurus: RARRRRRR*oooh baby dinosaur...sexytime*

Baby dinosaur: GRRAAH*oh no....rapeytime*

peadosaurus by ermmmm May 12, 2007

pimposaurus 

A pimposaurus much like a pimpasaurs is an individual that gets hella hoes and or non hoes

bro that dude is such a pimposaurus

pimposaurus by Potato Farmer69 September 22, 2016

pinosaurus

it is dinosaur with a big cock

pinosaurus

pinosaurus by Blades777 January 12, 2013