You’re in a Snapstreak with another user if you’ve spoken to them every day for the past 3 days in a row. You’ll see a fire emoji next to the names of people who you’re in a Snapstreak with. [1] X Research source
To see how long you’ve kept a Snapstreak going, look next to the person’s name on your SNR list. You’ll see a fire emoji and the number of days listed there.
For example, a scientist or engineer might say, “The optimal SNR level for our broadcast is 2 dB. ”
For example: “It’s the middle of the night, but we SNR in the streets. ” Basically, they mean they’re being loud or causing trouble late at night in a public place.