The hosts of yellow fever include both humans and monkeys. The cycle of yellow fever transmission occurs as follows: an infected monkey is bitten by a tree-hole breeding mosquito. This mosquito acquires the virus, and can pass the virus on to any number of other monkeys that it may bite.
Top Definition. filthy casual. âFilthy Casualâ is a term used on message boards and in comments to negatively describe a gamer who only plays casual games, or a game in any genre that requires a low level of commitment and often has simple gameplay. don't touch me, you filthy casual.
Full Definition of FOUL. intransitive verb. 1. : to become or be foul: as a: decompose, rot b: to become encrusted, clogged, or choked with a foreign substance c: to become entangled or come into collision. 2. : to commit a violation of the rules in a sport or game.3. : to hit a foul ball. transitive verb. 1.irty emphasizes the presence of dirt more than an emotional reaction to it. filthy carries a strong suggestion of offensiveness and typically of gradually accumulated dirt that begrimes and besmears. foul implies extreme offensiveness and an accumulation of what is rotten or stinking.