Don't want to confuse the issue, as Rusty is doing a great job.
But, following Glen's lead,
¿Qué le dice un pez a otro?
(What does one fish say to another fish?)
¡Nada!
(Ie., - Swim! or Nothing!)
And one person at the swimming pool,
¿Usted no nada nada?
Are you not swimming at all?
No, no traje traje.
No, I didn't bring my swimming trunks.
Traje = "traje de baño" = swimming trunks
"traje" = 1st person past tense of the verb "traer".
http://dle.rae.es/?id=aE26oeU
(Correct my Henglish, please!)