SticksLikeGlue

If you want one for your username I'll need a bit more information on what you're looking for..

I get the horse related part, and the sounds like a name part.. Anything else in particular?

Perhaps something that described your or your main OC or something?

For example, if you play soccer you could have the name: Hocker Practice

Other ideas: Mystery Mane, Hay Wassup, Professor Oat, Whiny Winner, Macho Mane..

Some good ones i thought of: Manesteed, Unstable, Nicker (Nicker is the sound a horse makes when it's vibrating it's closed lips.. Sounding something like "PPRRRRrrRRrrRrRrr", people can make the same sound with their mouth and lips too..)

If i think of any more I'll let you know

Hehe, what if you were named "Nopony"

...

That way if you brohoof something it will

actually say "Nopony brohoods this" hahaha xD