• Laughing burns about 1 calorie per minute.
• I may have 10 extra pounds of fat stored on my fucking ass (probably a bit less, but round numbers are nice)
• Fat is 4100 calories per pound
• 41,000 minutes is roughly 1 lunar month of nonstop laughing

Now you just need to convert units of funny into lunar months of laughing. I’m not doing all your homework for you.