Top Definition
Commonly used as an insult, directed at or about a particular person who is worthy of such a title.

One qualifies as a Knob Breath if they either:

- Have the smell of a Knob on their breath
- Enjoy performing fellatio on a man's Knob
- Are moronic, stupid or unkempt
- Have little sense of smell
- Recently suffered from IVD or T.R.E.
1. Man, did you catch a whiff of Peter tonight? What a Knob Breath!

2. John wants to share his collection of stamps with us. He is a complete Knob Breath.

3. Hey, Luke's a Knob Breath. Let's not go to his funeral.
by Johannes Chimpo February 15, 2006

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