Ah. A Staff weenie is anyone posted to a Battalion or higher headquarters who's primary job involves anything other than pulling a trigger - such as a Battalion S-1, S-2, S-3, etc. Or, in the Navy, anyone who is a member of the Staff Corps and not the Line Corps. A TOC is a Tactical Operations Centre - basically, a Battalion (or higher) headquarters. At Platoon and Company level, it would be called a CP, or Command Post.