| A | B |
| top dog | a success, a winner |
| underdog | the one expected to lose |
| in the dog house | in trouble; not in favor |
| bark up the wrong tree | guess incorrectly about something |
| one's bark is worse than one's bite | someone is kinder than they appear to be |
| let the cat out of the bag | tell a secret when you shouldn't |
| raining cats and dogs | raining heavily |
| copy cat | someone who imitates, or does the same thing, as another |
| smell a rat | be or become suspicious |
| for the birds | not good; not wanted |
| the birds and the bees | sex and reproduction |
| birds of a feather | similar people or things |
| a night owl | someone who likes to stay up late |
| an early bird | someone who likes to get up early |
| hen-pecked | nagged by someone, usually a spouse |
| chicken out of (doing something) | be afraid (to do something) |
| go to bed with the chickens | go to bed early; to go to sleep early |
| go cold turkey | quit something suddenly and completely |
| a turkey | a jerk; a social misfit |
| full of bull | lying; bragging |
| go hog wild | do something with lots of enthusiasm |
| go whole hog | do something completely |
| pig out | eat too much |
| get someone's goat | make someone angry |
| Hold your horses! | Wait! |
| horse around | fool around; do nothing important |
| bug someone | bother or annoy someone |
| a fly in the ointment | a problem; a drawback |
| get/have ants in one's pants | become jittery or nervous |
| fishy | suspicious |
| a fish out of water | someone out of place; someone awkward or uncomfortable |