Rockbottom
Before we go any further with this relationship, you should know
that I regularly use the phrase/word "rockbottom" in conversation.
This is something my family developed over the years.
Rockbottom: something so awful that you physically recoil upon encountering it.
The usage of this word is very nuanced - and given its power, it should be used wisely.
For instance:

Power walking.
Dorky? Yes. Rockbottom? No.
Now, on the other hand, power walking - inside the mall?

ROCKBOTTOM!
Let's try another one.
The fact that I love watching 8th & Ocean? Some might say it's pathetic, others (anyone with a brain) would say it's commendable. But the fact that I make this face while I'm watching it?

ROCKBOTTOM! Seriously, this is actually what I was caught doing last night while watching the show. (I mean, yes, inside, I truly feel this way while watching Briana and Brit and Kelly/Sabrina and Teddy and Oh! the new roommate Heidi! Oh dear god. Can I please be buried with 8th & Ocean? Better yet, can I buried AT 8th & Ocean?) Anyway, all these thoughts are COMPLETELY FINE - but to SHOW it so dumbly while I'm watching it? To make that face while watching ANYthing is rockbottom.
Variations on Rockbottom:
Rock. This abbreviation is used when you need to quickly express the rockbottomness of something and you don't have time for the full phrase. Also used when something is so rockbottom it doesn't even deserve the full usage. Example:

Rock.
Rock [silent crescendo] bottom. Used only for the most extreme cases of rockbottomness. In some cases this takes on a choral effect: in a group of 2 or more people, someone will say "rock", there will be a pause (i.e. silent crescendo) and someone else will complete the phrase with a firm "bottom." For example:

Rock...

say it with me...

BOTTOM!
Antonym:
Rocktop!

Self explanatory.