weak-sauce - meaning and definition. What is weak-sauce
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What (who) is weak-sauce - definition

SAUCE
Tartar Sauce; Pickle sauce; Tartare sauce; Sauce tartare; Tatar sauce

weak-sauce      
Disappointing, lame, a major let-down.
I can't believe he actually puked ON the cop... Ya, 2 years in prison is weak-sauce.
bechamel         
SAUCE OF FRENCH CUISINE
Bechamel; Béchamel; Sauce béchamel; White sauce; Sauce bechamel; Sauce blanche; Bchamel sauce; Bechamel sauce; Besciamella; Sauce Béchamel; Sauce Bechamel; Roux sauce; Béchemel sauce; Béchemel; Salsa blanca; Beschamel
['be???m?l]
¦ noun a rich white sauce made with milk infused with herbs and other flavourings.
Origin
named after the Marquis Louis de Bechamel, who is said to have invented a similar sauce.
white sauce         
SAUCE OF FRENCH CUISINE
Bechamel; Béchamel; Sauce béchamel; White sauce; Sauce bechamel; Sauce blanche; Bchamel sauce; Bechamel sauce; Besciamella; Sauce Béchamel; Sauce Bechamel; Roux sauce; Béchemel sauce; Béchemel; Salsa blanca; Beschamel
¦ noun a sauce consisting of flour blended and cooked with butter and milk or stock.

Wikipedia

Tartar sauce

Tartar sauce (French: sauce tartare; spelled tartare sauce in the UK, Ireland, New Zealand, Australia, Fiji, South Africa) is a condiment made of mayonnaise, chopped pickles and relish, caper, and herbs such as tarragon and dill. Tartar sauce can also be enhanced with the addition of other varieties of herbs, lemon juice, or olives. It is most often served with seafood dishes such as fish and chips, fish sandwiches, fish fingers, fried oysters, and calamari.