He is in the kitchen filling his face with cake.
fill one's face
idiomTo eat, especially in a hearty or greedy manner.
After the long hike, we sat down and started filling our faces with sandwiches.
Ignoring the formal atmosphere of the gala, the hungry guest retreated to the buffet to fill his face with appetizers.
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abound in one's own sense
To follow one’s own inclinations and opinions.
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ace up one's sleeve
A surprise advantage of which others are not aware.
- 03
act one's age
To behave in a manner appropriate to one's age.
- 04
act one's age, not one's shoe size
Synonym of act one's age (“to behave in a mature manner; to avoid being childish”).
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afraid of one's own shadow
Exceptionally timid.
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air one's dirty laundry in public
To reveal one's sordid secrets to the public.
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air one's dirty linen in public
Synonym of air one's dirty laundry in public.
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albatross around one's neck
A characteristic, possession, associate, or previous deed that hinders one's ability to succeed.