4 Morale

When you're in a tight situation and have almost no way out.
A reference to the ROBLOX game Decaying Winter, where teammates dying debuffs you.

EX1:
PLAYER1: "4 morale"
PLAYER2: "already"
PLAYER1: "stop dying mf"
EX2:
"4 morale help me"
"go hit zero" BG: hitting zero autokills in decaying winter