A very intense and concentrated level of anger. This is the anger one feels showing up at McDonalds at 11:01 on Sunday morning wanting only an Egg McMuffin, but you are one minute late for breakfast and are refused your tasty, coagulated treat. "11:01" can be used in almost all forms of speech, but works best as a dangling participle. See examples.
Dude, if Urban Dictionary rejects this entry, I'll be so 11:01