1) Radio electronic 
[electronics] In electronics, motorboating is a term for a type of low frequency parasitic oscillation (unwanted cyclic variation of the output voltage) that occurs in audio and radio equipment and often manifests itself as a sound similar to an idling motorboat engine, a `put-put-put`, in audio output from speakers or earphones. It is a pr...
the recreational activity of operating or traveling in a motorboat. · a malfunction in audio equipment resulting in sounds like those produced by an outboard motor.