A term started in San Antonio, Texas in the very early 1990's in the Urban Gay community. To spill the tea is to gossip. The term comes from the custom in the South of women who gather in the afternoon to drink tea and gossip.
1st person: Okay girls it is time to spill the tea.
2nd person: I have tea on Mike. He left the club last night because his ex showed up with a much younger guy.
"Man, he was so high I was sure he would spill the phone when he set down that bong"
"Hello ... You still there? ... Hello?"
"Uh, Hello. Sorry about that. Wouldn't you know -- I was just about to tell you the best part when I had to go and spill the phone."
A secret way of saying spill the tea in a subtle way that only your best friend will know ;) all the gossip, information and life updates in general come under the term of 'aloe'.
Person 1: Oh my gosh bro i have so much stuff to tell you
Person 2: Spill the Aloe bro