I mean technically, any Supergirl joke *is* a blonde joke, isn't it? Anyway, here's a Blonde/Supergirl two-fer combo for you minx:
A blonde's office computer had technical issues
IT support came over to the desk and said he needed password to access her account.
"It's 'MickeyMinnieBatmanSupergirlWonderwomanLondon'" she replied.
"A bit unusual for a password, how did you come up with it?" the support dude asked.
She went "Because computer said the password has to be at least 5 characters and have a capital"
A man with a tendency to over-explain things lays on his therapist's couch.
The therapist says “I have a new exercise for you today. Instead of spending an hour talking about your day, try to tell me the essentials of what happened in one breath.”
The patient agrees and takes a deep breath
“So they cast Callie Hernandez as Supergirl and I’m not sure if it was the best decision. Also, that movie is heavily featuring product placements from Burt’s Bees new ‘Fragile’ brand lip-balm. On top of that, I expect that my favorite Mexican food place, Alido's, is part of a crime ring and paying hush money to a mafia boss I saw there the other day.”
The patient gasps, and looks exhausted as they catch their breath.
The therapist adjusts their glasses and says, “Now simplify that even further. Only the basic points of that sentence.”
The patient thinks for a while, before responding with “Super Callie, Fragile lipstick, expect Alido’s hush.”
Don't throw things, I'll show myself out.