Jarana Spanish

tono

Short answer

In Lima, "tono" means a party. The register is coloquial — fine among friends, out of place in a job interview or anything written to an institution. The standard Spanish equivalent is "fiesta". In use: El tono fue hasta las cinco.

Part of speechsustantivo
Registercoloquial
Standard Spanishfiesta
In useEl tono fue hasta las cinco.
The party went on until five.

Draft entry — needs a native-speaker check before publishing.

Tonear is to party. Note the standard meaning of tono — tone, pitch — is alive too, so context matters.