Funnel
The narrowing journey from stranger to customer: awareness, interest, decision, purchase. Drawn as a funnel; behaves like a sieve. Marketing owns the top; sales blames them from the bottom.
Heard in the wild
“Traffic's fine — the funnel leaks at the pricing page.”
Tone check: Technical
Standard model, useful diagnostics. The marketing-vs-sales handoff point is corporate's oldest border dispute.