旷工

旷 = 广 + 日 : The sun (日) is lecturing Karl Koala (ku) in the anglepod's bathroom (ang4), but Karl Koala rather skips class (旷) by hiding under a wide (旷) parachute (广) and playing video games in his hideout.

工 = 二 + 丨 : Mnemonic symbol: a steel beam, since 工 looks like the cross section of a steel beam. In front of the engine ((e)ng1), Gitta Giraffe (gu) is doing some hard work: She's stacking a capacitor (二) on a dinosaur bone (丨) on a capacitor (二). She's not very successful, but then she gets the idea to use steel beams (工) as support.