As a verb glump
is (colloquial) to be sullen; to sulk.
As a noun glume is
(botany) a basal, membranous, outer sterile husk or bract in the flowers of grasses (poaceae) and sedges (cyperaceae).
glume
English
Noun
(
en noun)
(botany) a basal, membranous, outer sterile husk or bract in the flowers of grasses (Poaceae) and sedges (Cyperaceae)