There is a whole subset of the population that is crazy for acronyms. My brother and I were having a conversation last week about people, his wife included, using the acronym TMI. TMI apparently stands for 'too much information'.
The usage of this acronym would go something like:
" Hey guys, I have to go drop a deuce."
To which this subset of the population would respond:
"uhhhhh, TMI, Aimers!!"
Since my brother pointing TMI out to me, I've seriously heard it in use more than 5 times. This frustrates me. It could potentially stand to replace "awesome" or "you rock" in terms of phrases that annoy me.