to engineer or not to engineer

precision is a tension decision
stir a martini and the rolls royce hood
will not so much a shiver
let alone shake

a good break is just right
with a cliché corned 
beef bright
and damn the cows

smithereens are smitten
by exact explosions
exacted from engineers
whose calipers cannot deviate

taut is a perfect recipe
for snap me apart
and so i slouch
and couch
and loosen tightened ouch