tetraethylmethane Share definition Flag A chemical compound that looks like swastika when properly wound. Propper IUPAC name is 3,3-diethylpenthane. A: Look that sign over there! Goddamn neo-nazis! B: It is tetraethylmethane, you dumbass. tetraethylmethane by Tibor DP November 2, 2007 0 0 Get merch Get the tetraethylmethane mug. Buy Now — $32.95 See more merch