double up

US /ˈdʌb.əl ʌp/
UK /ˈdʌb.əl ʌp/
"double up" picture
1.

to share a room or bed, especially when there is not enough space for everyone to have their own

:
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We had to double up in a small hotel room during our trip.
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Due to limited space, some students will have to double up in the dorms.
:
sharebunk uppair up
2.

to bend over or curl up, typically because of pain or laughter

:
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He started to double up with laughter after hearing the joke.
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The sudden pain made her double up.
:
bend overcurl upcrouchstoop
:
doubledouble beddouble roomdouble datedouble negativedouble-deckerdouble-glazed