Oh my... just re-read a reply I sent to him.... here's a short list.
PV - personal Vaporizer, AKA Ecig
apv - advanced personal vaporizer
EGO - style of battery. usually the size of a small cigar.
Kanthal - heating wire used to heat Eliquid.
Nichrome - heating wire used to heat eliquid
ADV - All Day Vape... (users preferred flavor)
VV - Variable Voltage
VW - Variable Wattage
topper - the atomizer and/or tank on top of an ecigarette battery
tank - and atomizer that stores several millileters of ejuice
dripper - an attomizer that only holds enough liquid to saturate the coils. Requires constant dripping to keep the wicks wet.
wick - what carries/holds the juice while the heating wire heats it.
clearomizer - an atomizer and tank combined into one. Usually the wick and wire are inside the clearomizer, and most of the unit is see-through.
tankomizer - an atomizer and tank arrangement where the coil is on a level by itself, and the ejuice is wicked to the heating coils.
clouds - lots of vapor
PG - Propylene Glycol. one ingredient in E-juice - produces more flavor and throat hit but is thinner and produces less vapor.
VG - Vegetable Glycerine Second ingredient - produces slightly less flavor and throat hit but produces more flavor. Is thicker
Nic - niccotine.
mech mod - Mechanical mod. A battery compartment with no electronics. The atomizer is hooked straight to the battery with some sort of momentary on button.
coil - where the heating element is wrapped into a springlike appearance.
microcoil - where the heating element is wrapped like a spring, but each wrap touches each other.
#wraps (I.E. 8 wraps) - how many times the heating coil goes around.
hope this helps some.
that shoudl get you started