A person who does something either incredibly smart or incredibly stupid so as to merit the description of an agitated donkey.
I can never understand Dr. Valk's lectures, he's a total wild ass.

or

Did you see that huge spoiler Mike put on the back of his car. What a wild ass.
by D. Lee Miller December 26, 2007
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A Wild Ass Guess (WAG) is an estimate that is based upon experience, similarity and 'windage' and does not have immediately verifiable data that could be used to substantiate the estimate.
Management requests a rough order of magnitude (ROM) cost estimate, and there isn't time to do all of the necessary research, so you offer a WAG (wild ass guess) estimate scaled off of a previous project that you consider to have a similar complexity.
by Another Bob November 7, 2007
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When a dude just doesn't give a fuck and is down for whatever, whenever.
That's a wild ass nigga, he got a rock and roll tattoo on his ass.
by Wildassdude May 3, 2017
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An acute rash of the ass which primarily occurs in the summer when humidity and temperatures are high. Its severity increases when the sufferer must walk around on hot humid days in clothing with poor breathability. It commonly affects county fair attendees primarily those in denim jeans. The feeling is comparable to shoving double sided sandpaper between ones butt cheeks and walking until the skin is raw. Probably the main reason for the creation of Gold Bond Powder.
That guy sure is walked bow legged today, he must have the wild ass rash.

My asshole looks like a clown's mouth because of this fucking wild ass rash.

I smell baby powder, who's got the wild ass rash?
by Milkin It For A Livin February 7, 2013
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The term is generally used by financial, technical professionals and project managers to describe a solid assumption of a numeric target. It is far more than a guess or even a good guess. One is attempting to accurately estimate a number associated with for example a budget or time requirement using the available limited data or in the worse case no data.

If the individual offering the SWAG projection is well recognized and qualified in his area of expertise and he is offering it within that expertise, the likelihood that the SWAG will be taken seriously is high, especially if he has a proven track record.

Someone when challenged on where he came up with his numbers says "well its a SWAG" and he lacks the credentials to support it, is not likely to be taken seriously. In other word, some people use SWAG as a casual term instead of saying I guess.
When challenged to project the budget for a project whose concept is new to the organization, a scientific-wild-ass guess (SWAG) may be the only means of generating a realistic set of numbers. Consult experts in the various areas that may be involved. Example: A new product that has a market pull but has no material, manufacturing processes or facilities but needs to be brought on line within a set period of time, will by necessity require some SWAG. Having a SWAG number helps to provide guidance even if it is not totally accurate. It is far better than having an open checkbook.
by nyma72 December 26, 2013
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Wild Ass Niggas or (W.A.N) is a gang found in winston salem north carolina this gang go by any criminal activity no limits. if someone disrespect this gang they would be beat badly becouse WAN is down to protect there gang from anyone and anything and this gang color is Black. They only represent black and no other color. this is a notorios gang and they dont care about anyone thats now cool wit the gang.
LA: Wild Ass Niggas Gang allday fuck yall niggaz W's up .....

enemy: fuck WAN

LA:"pulls out a gun and kills the enemy"
by IBeThaWildest April 22, 2013
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when your black friend is bein unruly.
"yo teyy stop bein' fig ya african wild ass."
by rektdassho January 28, 2016
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