出出入入入入出出，多出多入多入多出。Out-out in-in, in-in out-out; More out more in, more in more out!

    
                "鬼馬" 叠字趣聯

出出入入入入出出，  多出多入多入多出。
深深淺淺淺淺深深，  至深至淺至淺至深。


A Funny "Palindrome-Riddle Couplet"
-- (in Chinese and English) by Frank C Yue

Out-out in-in, in-in out-out;
More out more in, more in more out!
"What is this all about, really?"
A Traffic Report on The Thunnel, merely!

Deep-deep shallow-shallow, shallow-                                         shallow deep-deep;
Go deep, go shallow, go shallow, go deep!
"What is this all about, really?"
Some Rookie Divers in Training, merely!



(of course, there is a variety of other possible interpretations... just let your imagination soar! 
the sky's the limit.)