I've never really heard anything since Phi Sigma Sigma (in greek letters) doesn't really look like a word, but at my school those who aren't greek have asked me things along the lines of "Oh, do you know that girl.... you know the girl from the EAT sorority?" (Referring to Sigma Delta Tau). Hmmmm interesting
... lol, I'm sure SDT girls hear that a lot.
Once when I was at the movies at home I was wearing my letters and as I was passing him to go the bathroom he starts shouting out "ALPHA BETA DELTA" like a cheer. He wasn't even close but alrighty then. lol.