an individual that is always excessively loud and climbs on everything in sight. Not only does he have no sense of privacy, he steals all of your food and blames it on the dog.

omg my little brother is running around with his underwear on his head again...

my little brother by nicole*da*goat August 20, 2018

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little brother syndrome

When one person feels they have a rivalry with another far superior person. The superior person usually doesn't know about it or feel that the little brother is any kind of a threat. The little brother usually puts forth maximum effort in meaningless situations in order to get the feeling of a win over his rival.

The Baltimore Raven's fans have little brother syndrome. They think they are the Redskin's rivals.

little brother syndrome by persephone81 August 13, 2009

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Big Little Brother

When a younger brother is bigger or around the same size as the older brother. sometimes the younger brother will have a very low,sometimes lower voice then the older brother which is rather comical.

My Brother's friends were horrified when I was introduced as his "little brother"

"More like my Big Little Brother" He corrected.

Big Little Brother by Kelly Day November 13, 2007

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Little brother

Aka; Pest, shadow, second attempt at a decent child, little bother.

Generally smaller. Quite annoying at times and seems to take great enjoyment in copying your everymove.

In context:
Felix: "Mm I'll have a strawberry icecream with walnuts and chocolate chips please."
Younger Brother (Is allergic to nuts): "Can I have a strawberry icecream with walnuts and chocolate chips?" (Innocent smile)
Felix (sigh): "Ehh..." (gives up)
-Result: Little brother in hospital and Felix grounded-

Little brother by Older Brother December 29, 2007

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