Top Definition
The condition of knob lag is contacted from to much sexual contact. Knob lag may last several days until one is fully recharge sexualy. The issue of knob lag is especially pronounced for people in long term relationships, prostitutes and gigolos.
Male- My penis is falling to oneside and is dribbling

Doctor- I think you have 'Knob Lag' from to much sexual intercourse

Male- Thats because I have a 12inch penis and my wifes gagging for it everynight
by Knob Lag March 27, 2012

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