bull in WordNet English dictionary

1. a large and strong and heavyset man
   "he was a bull of a man"; "a thick-skinned bruiser ready to give as good as he got"
   bull  bruiser  strapper  Samson 
   
2. a serious and ludicrous blunder
   "he made a bad bull of the assignment"
   bull 
   
3. uncastrated adult male of domestic cattle
   bull 
   
4. mature male of various mammals of which the female is called `cow'; e.g. whales or elephants or especially cattle
   bull 
   
5. obscene words for unacceptable behavior
   "I put up with a lot of bullshit from that jerk"; "what he said was mostly bull"
   bullshit  bull  Irish bull  horseshit  shit  crap  dogshit 
   
6. a formal proclamation issued by the pope (usually written in antiquated characters and sealed with a leaden bulla)
   bull  papal bull 
   
7. the center of a target
   bull's eye  bull 
   
8. uncomplimentary terms for a policeman
   bull  cop  copper  fuzz  pig 
   
9. an investor with an optimistic market outlook; an investor who expects prices to rise and so buys now for resale later
   bull 
   

1. advance in price
   "stocks were bulling"
   bull 
   
2. speak insincerely or without regard for facts or truths
   "The politician was not well prepared for the debate and faked it"
   talk through one's hat  bullshit  bull  fake 
   
3. try to raise the price of stocks through speculative buying
   bull 
   
4. push or force
   "He bulled through his demands"
   bull  bull through