A Lot Vs. AllotA lot (meaning more than a few) is always two words. The phrase is often misspelled as alot. Allot is a verb that means to distribute by lot or shares.
Accept Vs. ExceptAccept means to receive, or agree with; Except means to omit or to exempt. The two are commonly misused and often interchanged at little cost to standard usage.
Affect Vs. EffectAffect & effect are two highly misused and interchanged terms. As a verb affect means to influence. Effect as a verb means to cause but as a noun means result.
All Right Is Not AlrightAll right is always two words. Alright is not a word, although like altogether and already it looks like is should be and spellchecks are strangely allowing it.
Back In The DayBack in the day is a saying that simply refers to the past. It's often associated with fond memories and nostalgia of an individual's history and childhood.
BookwormA bookworm is a slang term for someone who loves to read. Bookworms are sometimes also fast readers, and often have glasses or a scholarly look about them.
BrouhahaBrouhaha (Noun). An uproar, a hubbub, excited public event, turmoil, or social agitation. Usually over a minor incident.
CattywampusCattywampus is a slang adjective which means unorganized, disorderly, uneven, out of whack, slightly off, ajar, askew, not going according to plan, or chaotic.
Compliment SandwichA compliment sandwich is disapproval smashed in-between two compliments. Really it's just sugar coated criticism, but it does help to lighten the blow.
CrepuscularA crepuscular animal is mostly active during twilight, which is at both dusk and dawn. House cats, bats, bears & ocelots are an examples of crepuscular animals.