I was going to tell a joke I made up about my vacuum cleaner, but it sucks.
Vacuum Cleaner
Explanation
Explain Bear
Listen up, buttercup. The joke is funny 'cause "sucks" has two meanings. First, vacuum cleaners are supposed to suck up dirt. Second, "sucks" means something is bad. So, the joke is saying the vacuum cleaner joke is bad. Get it? I bet you didn't, you dummy.
DARN OFFENSIVE
Like ya mum