"All the time" or "constantly."

It's derived from the term 24/7. 24/7 is actually a fraction, so we can calculate it in its repeating decimal form. 24/7=3.428571...

"3.4" is just used because it's much easier to type and say than the previously mentioned decimal equivalent.
Joe: OH NOES I GOTS TEH SHITZ!!!!111 I think im SICK AGAIN! =-o :-\
Phil: You're sick 3.4, you really need to go to the doctor... or go to bed at a normal time... OR stop eating fast food every day...
by no_one_2000 February 09, 2005
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A unique term used when a woman has had a powerful orgasm but can't stop her body from continuing the orgasm over a long period of time. It is usually caused by the brain or body not being able to process the information of the orgasm and continuing the sensation until the body can either manually stopped by medicinal drugs or by the body processing the orgasm and stopping the the sensation. The term is derived from the distance from a home to a local hospital.
C: Jack!
J: Yeah Cate?
C: something s wrong!
J: what?
C: I don't know.
C: take me to the ER!!!
J: okay.
J: Siri. Nearest hospital.
S: one is 3.4 miles away.
J: shit! my cars in the shop.
C: jack. Run. Now.
J: it's about to be a 3.4 mile fun run
by Dr. Francisco baker December 31, 2017
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