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?'