When things are too great to say "Yeah Boy" Cheddar boy is a sign of happiness relating to cheese somehow.
Subway Person: What sort of cheese do you recquire?
You: Cheddar Boy!
Subway Person: lolwut?
You: Cheddar pl0x.
You: Cheddar Boy!
Subway Person: lolwut?
You: Cheddar pl0x.
by BAKED BAKER May 04, 2009