Little Brother Syndrome 

When an older sibling brings a best friend into their home and the littler sibling thinks said person is their new friend and tries to impress them/flirt/or just won't leave you too alone for any reason

Your little brother has "Little Brother Syndrome" when he keeps trying to show your best friend his vast collection of Hot Wheels, even though said friend doesn't care and you both want him to go away.

Little Brother Syndrome by Dr. Upin Disbich July 19, 2015

Little brother syndrome 

When a person(doesn't always have to be a sibling) idolizes something you have done and decides to follow in your footsteps, ultimately copying exactly what you have done; complete and juvenile lack of originality.

My friend has little brother syndrome. I began to pursue my dream of writing comic books, and not to my surprise, i find the hack doing exactly the same.

Little brother syndrome by xX Unwise Xx January 12, 2010

Little Brother Syndrome 

When mom makes you play with your little brother but he sucks at everything.

Mom said its my turn on the xbox! Thats little brother syndrome!

Little Brother Syndrome by Harligan December 8, 2019

little brother fetish 

Wanting sex from little brothers of her current mate

Kristen has a little brother fetish!

little brother fetish by Dictionary.com March 26, 2003

little brother syndrome 

Following around friends like a clingy younger brother. One with said syndrome cannot make decisions for or take actions by himself. Usually acts like a fake-ass punk and/or lil bitch.

I walked into the other room and he followed me. So I went back into the livingroom and, sure enough, he came in a minute later. Fool wouldn't even go to that girl's house by himself. He's got a bad case of little brother syndrome.

little brother syndrome by Not your brother! April 8, 2009

Little brother syndrome 

A person that is really good at being a goof ball and breaking the tension of situations through comedy and playful antics. But at the same time, has a hard time ever taking things seriously or taking responsibility for things, expecting or assuming others will simply come to help out when needed. This is often how little brothers can behave, hence the term.

Sean is always getting parking tickets, and it's 'never his fault.' I used to feel bad, but now I just laugh at him. His older brother doesnt get it, and his mom just always bails him out. I don't get the guy, but he's a blast to be around. He has total little brother syndrome.

Little brother syndrome by wawaone February 28, 2011

Little Brother Controller 

A knock off, or worn down video game controller that is used by a younger sibaling while playing video games with an older sibaling

When I play call of duty with Jack he gets the little brother controller

Little Brother Controller by Heyitsj000 May 8, 2019