To sip tea means to listen to gossip, usually enthusiastically. To spill tea means to share gossip.
And everything I peeped, can’t just unsee
Sips tea, and it’s unsweet -Nicki Minaj, “the light is coming”
Sparkling water tastes like tv static and that's the tea, sis.
— Adelaine M♡RIN (@AdelaineMorin) August 24, 2018