A Jugasaurus-Rex is the name given to a female with
extremely large breasts.
The phrase was made famous by Neil from t.v show 'The Inbetweeners' where he spots a girl in the park and says, 'Hey guys,
look at that Jugasaurus-Rex!'.
'Hey
Lewis, Jugasaurus-Rex at 5'o'clock!'
'Woah, Your a right Jugasaurus-Rex!'
'Don't you think that
Pamella Anderson is just one huge Jugasaurus-Rex?'