Lactomangulation Edit Meaning

1.

Manhandling the "open here" spout on a milk container so badly that one has to resort to the 'illegal' side.

After lactomangulating the milk carton, I switched to the other side and cut the top off.

2.

The act of making a mess of opening a cardboard milk carton, forcing you to use scissors to cut the innappropriate corner.

Bloke 1- "So, how was your day?"

Bloke 2- "Terrible. Plagued by lactomangulation, and my dog died."

3.

when you are trying to open up a carton of milk and it is so difficult that you either shred it or have to resort to the "illegal" side

oh man, you sure lactomangulated that carton of milk!