I'm pickin' up good vibrations
She's giving me excitations (Oom bop bop)

Meaning

Definition of ‘excitation’ according to Merriam-Webster:

the disturbed or altered condition resulting from stimulation of an individual, organ, tissue, or cell.

She turns him on. And she’s good at it.

Also, the theremin played on this track illustrates the good vibrations through sound

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