A 5‑bet is the third re‑raise, following a 4‑bet.
Explanation. A 5‑bet occurs when the action continues after a 4‑bet—very rare and typically only used with the absolute strongest holdings (e.g. AA). In practice, 5‑bets are almost always preflop and signal extreme strength or occasionally a bluff if player dynamics allow. Only elite or deeply stacked players engage at this level, making it an advanced-level action.