1. A friend who makes the commitment to party and then doesn't show up and/or return your calls/texts.

2. A large headed homo sapien with alopecia.
Sam: Hey where's Matt? He said he was going to go out and party tonight.
Andy: Yeah he did...WTF is Matt?
Ben: I'll tell you where Matt is.....
Tyson: Who cares....he's such a Bennett Bailer.
Bobby: Let's go surfing then!
by Operator 826 December 21, 2009
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Someone who routinely bails on a bro, especially when he makes plans to hang out. He will often bail to hang with his mom, or wifey
Example 1:
Me: Hey Bro what time are we heading to the bar tonight?
Bro: Sorry got plans with my mom and wifey.
Me: Oh, okay, thanks bro-bailer. We made plans two days ago.

Example 2:
Me: David never hangs out with his bros... Dudes a total bro-bailer bro.
My bro: totally dude.
by Svco November 3, 2014
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A person who is about to perform anal sex with a willing anal candidate but bails out at the last moment.
e.g
Donald: "Take me now, whilst you're firm!"
Leeroy: "oww, do i have i have to"
Donald: "What the fuck, you ANaL BAiLeR!"
by scorgeofmapps June 17, 2007
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One who chooses to only smoke one or two joints then chooses to pass when the third joint comes around his way. AKA party pooper
yo, bob, take a hit man

dude, im baked already. i had two spliffs

ur such a bailer-bitch. pussy piece of shit, fine, stay sober
by shamus herlehy July 11, 2008
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term applied to a botanist who collects plants in a plant press, until the press is so full it resembles a bail of hay
That Marcus E. Jones was sure a hay bailer
by fup duck June 30, 2011
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When you cut off a woman's pubes, then 'ball up' the hairs and insert the ball of hair into the woman's anus. Then have anal sex.
"I still have hair in my butt from that Texas hay bailer I did last night with Adam."
by Meek12 April 3, 2014
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