If you know you go 

The best spots are that way because they are little-known gems.

The term is shorthand for “if you don’t know about insert amazing place to surf/[skate/mountain bike/climb/board/fish then I am not going to be the one to tell you.”

dude 1: "... hey bro where'd you surf today?"
dude 2: "Old faithfuls. It was firing - sick barrels, hardly anyone out"
dude 1: "Oh noice. Where the heck is that place? Someone else was sayin' it was going off the other day"
dude 2: "If you know you go..."

If you know you go by All Your Surf July 15, 2019

If You Know, You Know 

1. A Concise phrase, where the context of the matter doesn't need to be explained. Usually said to someone out of the loop/ not up to date/ is not aware.

2. Having knowledge or being aware of something especially through personal experience.

3. Street Smarts

4. Being Cognizant

Person 1:

What was that about?
What were they talking about?
Is that true?
How do you know THAT?
Person 2:

Don't worry about it. If you know, you know.
-

If You Know, You Know by LinguisticsOfTime March 18, 2020

If you know what I mean 

A common phrase, that if added to the end of any simple sentance, can make it sound dirty.

I'm gonna go scuba diving tonight, if you know what I mean.

I'm gonna make the bed, if you know what I mean.

We paid the bills the other day, if you know what I mean.

If you know what I mean by Samantha May 9, 2004

if you know what i mean 

Added to the end of a sentence to make it sound dirty ... hinting towards a possible sexual meaning.

John - Dude you got an A in calculus!!!
Mike - Yeah its the result of some one on one tutoring with Ms Claudia if you know what I mean

if you know what i mean by asawer March 11, 2005

If you know, you know 

The defining phrase of an inside joke/access to information only a select few know about

You see your mate's laptop screen saver is a naked girl, but her face is covered , you know who it is, but others don't- you post it on your snapchat and put "....'s screensaver, if you know, you know"

If you know, you know by Resting peace October 11, 2015

If you know what I mean 

Usually added to a sentence that makes absolutely no since but makes it sound like its a common phrase. Over all makes everyone really confused.

I too like to shake a bag of old wrenches if you know what I mean.

If you know what I mean by Don't paniccc May 21, 2016

if you know what i mean 

way to make a statement "dirty"

i want to be alone by myself tonight, if you know what i mean

if you know what i mean by tommy harkness August 1, 2003