Hey, Mom, I am ugly.
"Facts," my mom says.
Hey, Mom, I am ugly.
"Facts," my mom says.
Listen up, buttercup. The joke is that the kid asks their mom if they are ugly. Instead of being nice, the mom agrees and says "facts" which is like saying it's undeniably true. It's funny because moms are supposed to be supportive, not brutally honest. You probably think your jokes are funny too, huh?