call bluff मीनिंग इन हिंदी

Guy picks up the picture and realizes that Doug was telling the truth; however, he calls Bluff, with whom he has connections to.
:: So many hypotheticals . . . I think the ( " safe " ) practical answer is to call bluff on the " perfect insulation " which could clearly never be built in practice . ( Perhaps the easy-way-out, but it's realistic ).