When something is perfect (6), it degrades significantly (4), only to improve somewhat (5), yet is not as glorious as its former state (6).
Boy 1: "Dude...you know my totally awesome dog, Rover?"

Boy 2: "yeah of course. He's remarkable!!"

Boy 1: "yeah...he got hit by a truck last Monday."

Boy 2: "Mondays really do suck, dude"

Boy 1: "Yeah, well he went to the vet in really bad conditions, but got relased and now he only has three legs. I just don't know what to do anymore, man"

Boy 2: "dude...6-4-5 man, get over it."
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When two buds double team a girl. It's a reference to a 6-4-3 double play in baseball.
Cam: "Yo I'm gonna smash this this baddie Friday night."

Adam: "Be a bro and let me turn a 6-4-3 with you."
by Lanierlaw_17 August 15, 2016
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When you have reached comfort and relaxation far far beyond ‘based’ until you reached the stage known as 6/4 based
Person 1: bro I’m so based but I feel like I’m even more based than based
Person 2: bro I know exactly what you are
Person 1: what am I bro
Person 2: bro, you are 6/4 based
Person 1: bro

Person 2:bro
Person 1: bro I’m 6/4 based
Person 2: yes u are bro you have reached stage 6/4 based
by Alfie marcantonio March 12, 2019
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Turning the 6-4-3 is a "Double Play" in baseball, but used in American slang as the term for a Threesome.

Tee: Dude, him and his wife wouldn't quit hitting on me all night!
Huck: That's cause he was goin for turning the 6-4-3!
by idkwtfT December 21, 2007
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A point in time where it is very late at night, but you don't want to go to bed because you feel like you have more to do in the day. Anything - whether it be writing, browsing the internet, trying to practice a song, or just flicking through the TV - is more appealing than going to sleep, even though you know damn well that you need to go to bed.

When it's 25 or 6 to 4, your only option may be to say "fuck it" and go to bed. Then, however, you will feel like you are bound to miss out on whatever assuredly awesome thing you would see or do if you stayed awake.

"25 or 6 to 4" refers to the exact point in time when this tends to happen - around 25 or 26 minutes until 4AM. Named after a song by Chicago.
Staring blindly into space / Getting up to splash my face / Wanting just to stay awake / Wondering how much I can take / Should I try to do some more? / 25 or 6 to 4
-"25 Or 6 To 4", Chicago
by traceExcalibur February 11, 2012
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This phrase references when someone needs more destruction in their relationship. The six-four comes from smashing a six-string guitar into a four-string bass guitar. The five-o references five attempts in a relationship at "getting some" and in turn getting "o" or none.
If you take your girlfriend out five times with no action, your friend could say, "Man, you need some serious 6-4 in your 5-0." Conversely, if you take your boyfriend shopping five times and he neglects each time to buy you a cinnabon, your friend could say, "Girl, you gotta get some 6-4 up in your 5-0." The form of destruction could refer to anything, not just musical instruments smashing together. For instance, you could drive your car through your girlfriend's dog's house (taking out the dog first of course). Or you could drop a road flare and some firecrackers in your boyfriend's garbage disposal.
by Ambrose Thunderfingers January 26, 2009
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