Quick question about the term used for this?...?

Is there a term used for when you say a word but your mind coughs up two options and you end up saying an amalgamation of the two?

For example, when meeting someone for the first time, your brain tells you to say Hi and Hello at the same time so you end up saying Hi-lo.

I seem to do this an irritating amount of the time and was just wondering if theres a specific word for the phenomenon?