weaksauce

Etymology
. Attested as college student slang as early as 1995 according to https://english.stackexchange.com/questions/601809/the-origin-of-awesomesauce-and-weak-sauce

Adjective

 * 1)  Boring or disappointing.

Noun

 * 1)   Something that is boring or disappointing.
 * 2)   The state or quality of being boring or disappointing.