So by asking google: how many meters in 100 yards. It comes back quickly with the answer 100 yards = 91.44 meters. A meter stick is just a bit longer than a yard stick, so a good guess is that 100 yards is just a bit fewer than 100 meters. Google's answer is consistent with that expectation.
Trochaic meter is a line of poetry composed of trochees. A trochee is a basic metrical unit called a foot consisting of two syllables. Derived from the Greek trokhaios ('falling, tripping'), this foot's name is representative of its falling rhythm, meaning a stressed syllable is followed by weaker ones.
The craic (crack) was MIGHTY! The craic can also be FIERCE but in 30 years in the Irish traditional music scene, including much mighty and fierce craic, I have never heard of the craic being ninety.