My friend's man has seizures, so guess who won their breakdancing tournament.
Breakdancing Seizure
Explanation
Explain Bear
Listen here, buddy. This joke is playing on words. It's about a dude who has seizures, which cause him to shake and move uncontrollably. The punchline says that this dude won a breakdancing tournament, implying that his seizures made him a good breakdancer, even though it's a medical condition. You probably think seizure is a type of dance, don't you?