The donate feature (which is not implemented or activated on all servers) allows players to give credits/evos to their teammates. As opposed to the Share command, the Donate command does not target a specific teammate but will spread the amount given among the teammates most in need.
Syntax:
/donate 4
would give 4 evos to your alien teammates. If you want to be funny and spammy, do that while playing on the human team. Otherwise, better use
/donate 1000
If you're about to leave the team or server, be nice and donate everything you have.