Writer's Block

Madness, that's what it was. Craziness, insanity, lunacy - all good words too.
Sadly he only had an 'i' instead of an 'a', and he was pretty sure Sophie would challenge 'midness'. Actually, since he challenged 'ai' earlier she'd been doing the same to him almost every round. Darn three-toed sloth.
Come on now, think! These were good-looking letters - a seven-letter word must be possible. Maybe with something on the board...
She was glaring at him again. Was he taking too long? Or was his foolish challenge earlier still rankling? It couldn't be because he was winning, because she had a 70 point lead.
Suddenly she reached over and rapped him painfully on the head with her knuckles.
"Hello? Anyone in there, Aldernak?"
"Ow! What was that for?!"
"Just checking you were still alive. Most people move occasionally."
"I'm thinking, ok?"
"Silly me for not recognising the signs."
He ignored her and tried to focus on his letters. Come on, there must be something...desi-, mes-, mis-, dis-, wait...dim, dimness? Yes, at last! Now, where to put it? Pluralise an existing word, or try something clever? His brow furrowed - far less options than he'd expected. Eventually, he settled on DIMNESS and AS, not quite the points fiesta he'd hoped for but at least he got a double-word score too. Let's see...10 (plus 2 more as an S was tripled) * 2 plus 2, plus 50. He plonked the letters down.
"76 points! And the lead too, i believe."
He grinned broadly at her, but she shook her head and said nothing. Then a grin spread across her face, and she started placing letters.
"S...Ass? S...Q...U...E...E...Z...E. Oh, bugger."
Aldernak looked ruefully at the board. A triple-word score, with a Q plus the Z on the double-letter square. 152 points, plus she'd got 9 from ASS.
"That wasn't nice."
She blew a raspberry at him.
"Your letter points, please. Game over."
"Er...14."
Needless to say, she'd won comfortably. Still, his last set of letters were remarkably apt.

FUKITOL.