While I’m venting my spleen I may as well get this off my chest.
Extranyms: the frickin pointless repetition of the final word that constitutes an acronym. Like when people refer to ATM machines, PIN numbers, RAM memory, SOLAG gloves or the HIV virus.
Several people have lain claim to independently coming up with this word. I thought of it also but toyed with the idea of calling them “redundanyms” for a while before finding out that it wasn’t just me who was annoyed by their increasing usage. Others were calling them extranyms and I eventually decided I preferred this.