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.
â Filthy Casual â 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.
Oh, no, are you kidding me? He's not my boyfriend, we're just in a casual relationship, means that our relationship lacks serious intent or commitment. A synonym for casual is everyday, meaning nothing special, unusual, serious, or eventful. Don't run out to buy a special outfit, because what you're already wearing is probably just fine. It's what you wear every day, all the time; it's casual.