1) The spelling of the "Nile River" by a person with bad spelling skills, or by a "Directioner".
2) The name of a boy when the parents like the Nile river and think it looks cute spelled with an "A", two "L"s and without an "E".
I failed my geography test, I was in One Direction land and spelled the Nile River "the Niall River".

Let's name the baby Nile. No, make it Niall because that sounds less Egyption.
by Just Random Things June 23, 2013
Get the Niall mug.
Cool guy who is good at everything. He gets bare coochie and has so many fortnite wins you wouldn't believe.
Shordy 1: Wow hes so hot
Shordy 2: I heard he's named Niall
by Nialltheboss June 23, 2019
Get the Niall mug.
An extremely intellectual being who likes to create long power point homework’s to benefit him. He usually is a nice person that cares for others but can be annoying. He mainly spends his time revising and working hard for good grades. However despite this he is a good person who will be a good friend.
Ohhhhhhh I like Niall he is soooooo cool
by Trev the beast July 9, 2018
Get the Niall mug.
Niall is gay
by November 9, 2020
Get the Niall mug.
Niall is gay
by Butler27 April 17, 2020
Get the Niall mug.
A boy who is prone to being hyper and over-active. When and if alcohol is added to the mix, he goes into hype over load and is uncontrollable for a long period of time. Also prone to taking sexual interest in black men. Tries to mask this love with competition and humour. May also threaten with sexual acts.
Niall - 'I'm going to get with a black man, just to prove that I can.'

Niall -'I'm gonna suck your.. your.. your..'
by truthwhat January 12, 2012
Get the Niall mug.