狗咬狗

狗 = 句 + 犭 : This dog I will represent by a Great Dane (German: "Dogge", very similar to "dog").

Guy Fawkes (g) and the Grammar Nazi (句) are being walked by their dogs, a Dachshund (犭) and a Great Dane (狗), in the outhouse (ou3). Guy Fawkes and the Grammar Nazi are very interested in each other and spend a lot of time sniffing each other's butts.

咬 = 交 + 口 : Linus Pauling (交) asks Maud Younger (y) for something to eat in the aorta (ao3). Maud gives him a mandarin (口) and Linus thankfully bites (咬) it.

咬 = 交 + 口 : Linus Pauling (交) asks Maud Younger (y) for something to eat in the aorta (ao3). Maud gives him a mandarin (口) and Linus thankfully bites (咬) it.