Everyone,
at some time,
will experience
Halitosis or Bad Breath. 
Here are a few of the colorful descriptions I have collected from people I have helped to overcome their mouth odor problem.

My mouth feels like termites have been having an all-night rave inside it

My mouth feels like it is on fire all the time.

Just the taste in my mouth feels like the warm ocean rising on the sand My mouth feels like it's burning and I have a terrible sour acidic taste.

I think my glands just swell because my throat is sore and I swallow so much.

My mouth feels like a leather bag full of sand, my lips are bleeding

My mouth feels like its lined in Saran Wrap.

By now, my mouth feels like the inside of a tram-driver’s glove

Still going strong although now have a funny taste in my mouth.

Feels like I have been up all night smoking –

My mouth feels like it was mugged,

my mouth feels like it's stuffed with peanuts

WHen I close my mouth, feels like there is a metal grate between my lips

I wake up and my mouth feels like velcro inside

my mouth feels like one of Davy Crockett’s old coonskin caps

The inside of my mouth feels like a warm snow cone. Blugh

my mouth feels like a slight burning and bit sore when i swallow

My mouth feels like a gaping hole full of infestation

my mouth feels like the desert – parched

my mouth feels like a manure pile

my mouth feels like crap.

My mouth feels like an oven.

My mouth feels like if it's stuffed with a rebozo

My mouth feels like it just fell off

My head is empty, my mouth feels like I swallowed dog's hair

my mouth feels like parchment

My mouth feels like a tortoise shell in a drought

my mouth feels like I made out with a few razorblades

my mouth feels like it has been branded.

My mouth feels like and old damp sock

my mouth feels like I ate dirt

My throat feels like it is on fire.

My mouth feels like the lint trap in the clothes dryer

I'm about to die of dehydration, and

My mouth feels like the bottom of a birdcage

my mouth feels like its covered in rubber cement

My mouth feels like the wadding inside a pill bottle.

My mouth feels like I swallowed a bucket of sand

My mouth feels like a badger’s arse

Strong smelling breath at night and all day

My mouth feels like an ashtray,

My mouth feels all chew up on the inside

My mouth feels like it is filled with sulphur compound.

my mouth feels like I’ve been swilling battery acid

My mouth feels like its full of hot pepper