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English word:    
double   up  

double up

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double up in WordNet English dictionary

verb
  1. bend over or curl up, usually with laughter or pain
    "He doubled and vomited violently"
    double over  double  double up 
  2. stake winnings from one bet on a subsequent wager
    parlay  double up 
  3. share a room or a bed designed for only one person
    double up 
WordNet Lexical Database v3.0, © 2006 Princeton University


double up in English Wiktionary

 
  1. (verb) To double the quantity, amount or duration of something
  2. (verb) (baseball) To get the second out in a double play, typically referring to getting an out by beating a runner back to a base (often by throwing) after a fly ball has been caught
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