Snoop Dogg.
A dog knows what is 'no'.
One wags it's tail, while the other tags a whale
The mathematician says "2" The Physicist says "2, plus or minus 0.1" The engineer says "Probably around 2, but let's say 3 to be on the safe side".
Half a cat.
A man named Bob running down a train track (only Asians will understand)
Pi Ok, I'm leaving now.
A Blunt force
A smokesalottapotamus.