Please refrain from posting if you're under 13 because chances are nobody will think it's funny.
How to write 3d without 3!
You start with deleting 3.
Then add 2 Dīs! There you go! d+dd=DDD
Edit: I got another!
Your mom is so fat so when she is takin a swim in the ocean the whales sing: WE ARE FAMILY!
click here