1. wander aimlessly
1. From my boyhood until this day, I have always loved to ramble in the countryside.
2. talk aimlessly
2. He had become a little drunk, and was starting to ramble incoherently.
Ram + amble - Ram (rambo) ambled (wandered) aimlessly in the jungle. Ramble (RA+AMBLE)-Amble RAndomly i.e. aimlessly.