Webster's Revised Unabridged Dictionary · 1913

Buzz

Buzz (buz) , intransitive verb

[An onomatopoia.]

To make a low, continuous, humming or sibilant sound, like that made by bees with their wings. Hence: To utter a murmuring sound; to speak with a low, humming voice.
Like a wasp is buzzed, and stung him. — Longfellow
However these disturbers of our peace Buzz in the people's ears. — Shakespeare

Buzz , transitive verb

1.
To sound forth by buzzing. — Shakespeare
2.
To whisper; to communicate, as tales, in an under tone; to spread, as report, by whispers, or secretly.
I will buzz abroad such prophecies That Edward shall be fearful of his life. — Shakespeare
3.
To talk to incessantly or confidentially in a low humming voice. [Colloquial]
4.
(Phonetics) To sound with a “buzz”. — H. Sweet

Buzz , noun

1.
A continuous, humming noise, as of bees; a confused murmur, as of general conversation in low tones, or of a general expression of surprise or approbation.
The constant buzz of a fly. — Macaulay
I found the whole room in a buzz of politics. — Addison
There is a buzz all around regarding the sermon. — Thackeray
2.
A whisper; a report spread secretly or cautiously.
There's a certain buzz Of a stolen marriage. — Massinger
3.
(Phonetics) The audible friction of voice consonants. — H. Sweet