Top definition
The child offspring of Megatron and an HP-35 calculator.
Calcutron: Foiled again! I'll get you next time Optimus!

Optimus: You wish Calcutron...

Calcutron: 55378008!

Optimus: .....

Calcutron: err 37
by Mr. Watch and Game January 21, 2013
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug