1. A personal awareness that ones breath does not smell good, either having imbibed tea, alcohol, mints, but usually coffee.
2. Smelly, coffee breath, as experiened by school pupils when their teachers speak to them within sniffing distance just after morning break.
Check out girl: Seventeen pounds and thirty three p, please.
Shopper: Here you go, love. (stoops too low as handing over cash). Sorry about my teacher breath.
Check out girl: No worries (but thinking: Urgh. This stront mings of coffee.