I had an uncle who named his pitbull Clapton. Then the dog died and he got another pitbull and named it Clapton 2. This dog had such a strong bite that my uncle attached a chew-toy to the flagpole wire in his front yard and raised the dog up it at his Fourth of July barbecue. Naming your daughter Carlin after George Carlin makes me think (affectionately) of my hick uncle and his dog.
I really dislike Carolyn because I'm a Caroline and it always gets confused.
I do however like Evelyn, Gwendolyn, and Marilyn quite a bit.
I dislike when it feels like the -lynn is just tacked on the end (like the scene from Ted that has already been referenced) or when I feel like it should be a -line or -leen instead!
I am not a fan of Carlin. I know of a guy that was named Carlin and one of my friends named their daughter Karlynn nn Karlie. They were originally going to name her Karlie Lynn but changed it to Karlynn being the first name. I do not like it. And I am a fan of both surnames as names and unisex names. For some reason this one just doesnt' do it for me. I do love nn Carly though.
-lyn names I like...
A former co-worker of mine is named Carlyn and she is one of the sweetest women I know, so nothing but good associations for me. She is in her 50s, so it doesn't feel trendy to me.
I know a Karlyn so that spelling seems more feminine and yes probably more trendy. She is in her late 20's. I never realized it was a last name I don't even know who George Carlin is. :) I've always liked it though and wouldn't consider it masculine. Again, I know a female Karlyn though. My favorite lyn names are Madelyn and Adelyn, but I really like Madelyn. It was on my list til a friend used Adelyn. Now, I would be more inclined to use the Madeleine spelling but I like the simplicity and clarity (of pronunciation) of Madelyn.
I like Carlin, but do not care for Carlyn. That would be taking a strong unisex name, which is partially in honor of a free spirit, and femme-ing it up because a girl's name must be cutesy and soft.
I don't think you'd get too many raised eyebrows, even from the Madicyn set.
I like Carlin. For the association, and just in general. (Though, I seem to have a thing for most Hard-C names!)
I'd personally be more inclined to use it on a boy. That's just me. I'm not overly fond of the unisex names. But, it's not unheard of!
For some reason I would be more partial to Carlyn for a girl. Which, creates quite a paradox in my head. Because I'm also not fond of just turning a "boy" name into a "girl" name by adding/changing a few letters. And, it's only in spelling. Introduction/sound wise, it's the Exact same name.
I think it's a great name for boy or girl. Spelling depends on if you're more into unisex names or creative spellings.