Drawing dead / near dead
If the board is paired and a flush completes and you're on a lower flush, you can be drawing near dead. Pot odds don't save you if you have almost no clean outs.
Before you call 'because the pot is big,' ask: what hands beat me, and do I have cards that actually win?
'Drawing dead / near dead' (NLH cash, G1): Thin value vs payers; bluffs need a coherent prior-street story.