When a non-adult male ( between the age of 12 to 18) is flirting a female of the same age or younger ,like a 40 year-old business man would.
Boy 1: bruh I am trying so hard to show my feeling to my crush but this fuckboy dude is so much better

Boy 2: so he is 40 year old man flirting her .
by TrippyWanderer23 March 24, 2020
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A group of guys that call themselves the band only one of them has played an instrument though

They act like a bunch of frat boys at the age of 40
They do 40 year old things to like playing golf
Hey what did the 40 yr old frat do

They got black out drunk while golfing and then grilled out steaks forgot everything the next day

Oh OK I guess this is their normal Saturday thing

Yeah
by Frat boy Chad July 21, 2021
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If you see 40■4 written on the palm of someone's hand it means thay are willing to stand up against the government to protect our constitutional rights if it is necessary
Yo he has 40■4(willing to stand up to the gov for our constitutional rights)on his palm
by jj101202 August 16, 2021
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The action taken when you catch your girl or your lil movie on a sneaky link.
Ume believe i catch movie ... dont worry dawg rinse the .40
by Town242 June 29, 2021
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Expressing your immense show of unflinching courage when you encounter anything
Guy : the test won’t hold — mafo!
Me: Mo 40 - omo iya mi
by Thepelummy January 16, 2020
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A very famous German Submachine gun from the Second World War that was mistakenly called the schmeisser because of a famous weapons designer.

It has a 30 round mag and is a typical “bad guy” weapon as it’s colored black-ish and looks really bad ass
MP-40 is a shortage for Maschinenpistole 40 which is loosely translated into Machine pistol or gun
by The armsman October 14, 2018
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my friend: it sucks that my parents are getting divorced

Me: sprays WD-40 on his parents

my friend: I can't believe it they're getting back together it fixed everything.
by SHADOW06064 December 15, 2020
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