easy as ABC/pie/falling off a log
easy as ABC
Extremely easy. Come on, give me a hard one! These equations are easy as ABC!
easy as pie
Also, easy as falling or rolling off a log . Capable of being accomplished with no difficulty, as in This crossword puzzle is easy as pie. The first term presumably alludes to consuming pie (since making pie requires both effort and expertise). The variants most likely allude to standing on a log that is moving downstream, a feat in which falling off is a lot easier than remaining upright. Mark Twain had it in A Connecticut Yankee in King Arthur's Court (1889): "I could do it as easy as rolling off a log." The first colloquial term dates from the early 1900s, the colloquial variants from the 1830s. For a synonym, see piece of cake.
easy as falling off a log
If something is as easy as falling off a log, it is very easy to do. She's just the sort of woman who could cook a four-course dinner for 12 while singing all of Fauré's Requiem, and making it look as easy as falling off a log. Note: You can also say that something is as simple as falling off a log or like falling off a log. All you have to do it climb up the rope and stand on the bar. Honestly, it's like falling off a log.
easy as pieor
easy as ABC
If something is easy as pie or easy as ABC, it is very easy to do. Note: In the first idiom below, ABC is pronounced `a b c', as if you are spelling it out. With technology the way it is, it's as easy as pie to work from remote locations. With our guide, planning your US fly-drive holiday will be as easy as ABC. Compare with a piece of cake. Note: The reference is probably to eating a pie rather than making one.
easy as falling off a logvery easy. informal
This expression was originally a mid 19th-century American one, but it is now in general use. It was used around the year 1880 by Mark Twain in the alternative form rolling off a log .
easy as pievery easy. informal
Pie as a metaphor for something pleasant was originally late 19th-century US slang. Compare with nice as pie and pie in the sky (at pie).
(as) ˌeasy as ABˈC/ˈpie/falling off a ˈlog(informal) very easy: Try using the new photocopier. It’s as easy as pie.
easy as pieInformal
Capable of being accomplished or done with no difficulty.
easy as pie
Not difficult; requiring little or no effort or expertise. The analogy no doubt is to eating pie rather than making it, which requires both effort and expertise. An American term dating from the early twentieth century, it became a cliché relatively recently. See also duck soup; easy as rolling off a log; piece of cake.