A couple of abbreviations I've learned in my short time here:
TTF - Texas Tomato Food: My new favorite water-soluble, low-nitrogen fertilizer from hydroponics specialists Urban Farms. Typically used in the later flowering and fruiting stages of growth, as I understand it.
PWT - Perched Water Table: Water that may live in the bottom of your regular container garden - depending on the particle size of your growing medium mix and regardless of drainage holes - that likes to either water your roots or rot them, haven't found out for sure yet.
(read in relation to Tabla's seemingly famous 5-1-1 container mix articles on GW, but that abbreviation has already been explained elsewhere in this thread).