(2) A derogotory term used when responding to someone who you really cant be arsed to talk to
i.e Ash: "Jennie, ive just completed guitar hero on medium!"
(3) Smershing(v) - Generally mooching around
Smershing(adj)- i.e, "you smershing twat"
(4) Smershed - Lazy/Tired/Fucked
Ive been smershing around all day
(2) when all other words fail/you wouldn't want to use them anyway for fear of giving too much away.