shit-eating grin
A broad smile indicating self-awareness that may suggest self-satisfaction, smugness, discomfort, or embarrassment.
Near-synonym: smirk
ADJ
big, broad, huge, large, wide | faint, feeble | friendly, sympathetic | infectious | lazy | fatuous, foolish, goofy, silly
boyish, cheeky, impish, mischievous, sly
The old man's cheeky grin made everyone at the table laugh during dinner.
bashful, sheepish | sickly | rueful, sardonic, wry | self-deprecatory, self-mocking | knowing | insane, manic | grim, humourless, mirthless | evil, ferocious, hideous, wicked, wolfish | crooked, lopsided | gap-toothed, toothless, toothy
VERB + GRIN
crack, force, give (sb)
She cracked a wide grin when she saw her surprise birthday party.
break into, split into
When she heard the joke, her face split into a huge grin.
hide, restrain, stifle
He couldn't hide his grin when he saw the surprise party waiting for him.
GRIN + VERB
broaden, grow broader/wider, widen
appear, spread across/over sth
When he heard the good news, a huge grin spread over his face.
disappear, fade
When she heard the bad news, her cheerful grin disappeared in an instant.
PREP
with a ~
She greeted her old friend at the airport with a warm grin.
~ at
She couldn't help but grin at the silly jokes her children were telling.
~ of
She couldn't hide the grin of satisfaction on her face after winning the competition.
PHRASES
take/wipe the grin off your face
He wiped the grin off his face when his boss walked into the room.
wipe the grin off sb's face
When he heard the exam results, it quickly wiped the grin off his face.
ADV
broadly, widely
The child grinned widely when she opened her birthday present.
weakly | crookedly | cheerfully, happily | amiably | cheekily, impishly, mischievously | triumphantly | inanely
sheepishly
She grinned sheepishly when her friends caught her singing in the shower.
apologetically, ruefully, wryly
He grinned ruefully as he realized he had forgotten his wallet at home.
unrepentantly | conspiratorially | wickedly | maliciously, wolfishly | sourly
back, down, up
The little boy grinned up at his mother as she lifted him onto her shoulders.
PREP
at
The baby started to grin at her mother when she made funny faces.
to
He grinned to his friend across the room when he spotted her at the party.
with
She couldn't help grinning with pride as she watched her daughter perform on stage.
PHRASES
grin from ear to ear
When he won the competition, he was grinning from ear to ear.