Reverse Dictionary: GRIN

ADJECTIVES
RIDENT radiantly cheerful; laughing, smiling, grinning → 1609

NOUNS
CHICKEN a foolish or sheepish grin → 1943 African-American students’ sl.

NOUNS – PERSON
GIRDLER one who mocks at or ridicules another; one who grins → 1886 Eng. dial. (Bk.)
GIRNE-GREAT a great grinner → 1900 Eng. dial. (Bk.)
GIRNER one who grins, esp. in a competition → 1932
GRINAGOG a stupid, grinning fellow; one who grins without reason or who is always grinning → 1565 obs. exc. Eng. dial.
GRINSHEEP a person who grins sheepishly → 1906 Amer. dial.
GRIZZLEDEMUNDY a term of abuse applied to a person who laughs at any trifling thing; a grinning fool; a stupid oaf → 1818 Eng. dial.

PHRASES
OIN THE HIGH GRIN grinning openly and  unmistakeably → 1738 obs.

VERBS
CHUCK A CHEESY to grin → 1992 Aust. sl.
FLASH ONE’S IVORIES ► FLASH THE IVORY to smile, to grin → 1785 sl.
GANGE to show the gums; hence, to grin → 1925 Sc.
GRIN LIKE A CHESSY CAT to grin widely → 1905 Amer. dial. (Bk.)
GRIN LIKE A STREET KNOCKER to grin like a Cheshire cat; to have a broad fixed smile on one’s face → 1830s colloq.
GRIZZLEto grin or laugh, esp. mockingly → 1577 chiefly Sc. Eng. dial.
INTERGERN to exchange grins or snarls; to snarl back → 1608 obs.
MAKE MOUTHS to grin; to jeer → 16C colloq.
MUMP to grimace; to form the lips into a grimace or grin → 1577 chiefly Sc.
SKIN TEETH to smile; to grin → 1994 Jamaica
SMICKER to smile fawningly; to smirk; to grin → 1802 Sc. obs.
SPORT ONE’S IVORY to grin → c1786 sl.