n. nonsense; bullshit. : Don't give me that bull! I won't buy it.
tv. & in. to lie to or deceive someone. : Stop bulling me!
n. a police officer; a private detective or guard. : Here come the bulls. Get out.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
Cite This Source
Word Origin & History
bull (2)
"papal edict," 1297, from L. bulla "sealed document," originally the word for the seal itself, from bulla "round thing, knob," said to be ult. from Gaulish, from PIE *bul- (cf. Lith. bule "buttocks," M.Du. puyl "bag").
An investor who believes the price of a particular security or security prices in general will follow a broad upward trend. An investor can often be a bull on a specific security but not on the general market, and vice versa. Compare bear.
[bool] 
lə ˈbɒr