Back jokes
Why do so many kids love boomerangs? Because they always come back.
I finally asked my deadbeat dad what makes him happy. His answer? He hasn't gotten back to me.
Your hairline is so far back, scientists consider it a ninth planet.
My history teacher asked my class what time they would go back to just to see what happened.
I said I'd go back to Hitler's childhood to tell him the lies that he becomes the ruler of the world by starting the Nazis, and leave his death out of the discussion.
When you have a box of dead babies in your garage and one of them is alive at the bottom and has to eat its way out but goes back for seconds.
Memes
The kid's dad was a magician because he disappeared and never came back.
Your mama is so ugly whenever she threw a boomerang, it refused to come back.
Your forehead and hairline are like friends; they go way back.
Your hairline is so far back that if you were a backbencher in class and I was a germ sitting on it, I would think that the rest of the backbenchers are seated in front of the class.
Your hairline is so bad, it goes back in time!
McDonald's called back and they said they want their logo back.
Your hairline's so far back, you need binoculars to see it.
Man, your hairline is so far back, archaeologists couldn't find it.
You're so ugly that when you were born, the doctor threw you out the window, and the window threw you back.
"2001 just called and they want their towers back."
College is the opposite of kidnapping. They demand $100,000 from you, or they'll send your kid back.
Your hairline went so back, you had to cry to your mama!
A man and a boy went into a forest. The boy said he was scared. The man said, "How do you think I feel? I have to walk back alone."
One time I fucked this chick so hard, she almost came back to life.
[concert] SINGER: How's everyone doin' tonight? CROWD: Woo! ME (from the back in a normal speaking voice): It's actually been a tough few months.
Why do orphans like the number seven? It's lucky, so maybe their parents will come back.