Colonary

Usually caused by a sudden shock or surprise!
Similar to a "coronary" except you shit yourself.

Some physical preconditions usually are present...
You ate a big meal earlier,

You are drinking or stoned and a little sleepy
You are not expecting a surprise.

Ex:

Bob: Jesus, I just heard Steve had a colonary last night!
Dave : Yeah, but he is now resting comfortably and receiving visitors...