The goofy song the Bugs Bunny "prototype" sings:
All the world was gay.
Swinging on its way.
Things were looking brighter day by day.(laugh)
Nothing ever wrong;
Life was just a song,
'Till that Looney Tune came along.(laugh)
Ohhh. I'm going cuckoo, woo-woo!
Here comes the choo-choo, woo-woo!
I'm so gooney, looney tuney, te'ched in the head...
Please pass the ketchup,
I think I'll go to bed! Hoo!
Am I the screwball, woo woo!
Throw me the 8-ball woo woo!
Once I knew a thing or two, but now I'm a buffer-roo. Hinky dinky parley woo woo!(laugh)
a Buffer means a "square" or a "mark".