Wiktionary
adv. 1 While crashing, or as if crashing 2 Absolutely; terribly
Usage examples of "crashingly".
It was near dawn and she, Chris, two band members and an arty black-and-white photographer named Rudy were sitting atop the tour bus in lawn chairs, sipping Benedictine and taking turns trying on silvery-orange nipple tassels that Chris, back in Las Vegas and crashingly drunk, had purchased from an off-duty lap dancer for $500.
He recovered himself and hurled me from him so that I came to the floor crashingly half under my writing-table!
And then he fell crashingly in love with a female nightclub singer who passed herself off as Japanese and sang word-for-word imitations of Edith Piaf records.
In the case of the sedimentary rocks that form the Bahariya Formation, the way Smith and Lacovara hoped to find out about the landscape once roamed by the animals their colleagues were unearthing at the bottom of the hill was by studying something that might well seem crashingly dull but turns out not to be: the size of the grains in the rock.