Converse of object

• wipe: They just wanted to wipe the grin from his face.

• plaster: It didn't merely make me smile, it plastered a grin across my face.

• flash: The Governor's son had scrambled up beside his father, flashing a quick grin over his shoulder at Dirk.

Adjective modifier

• toothy: Mikey's been rattled by Tony's toothy grin.

• cheesy: With a cheesy grin she offers her neck to black leather gloves of the killer, " Just don't mess up my hair!

• cheeky: I just think Simon has got a real cheeky grin!

• smug: As this dodgy crank of a coach spluttered along I allowed myself a smug grin as the holders of standard coach tickets pushed forward.

• wry: Dave on drums with wry grin: powerful with perfect attitude.

• impish: The Cheeky name is due to that impish grin.

Noun used with modifier

• rictus: Egghead quizmaster Bamber Gascoigne, whose name alone sounded like some obscure degree-level specialism, would babble the questions through a perpetual rictus grin.

• ear-to-ear: These benefits include better health, excitement, personal growth, ear-to-ear grins, and a whole lot of fun.

Possessives

• jester: Jester's grin masking was named police at a time game based on.

Preposition: like

• idiot: He was aware that he was grinning like an idiot.