Scorching and impatience with

The kanji has a few meanings related to heat and burning:

Etymology

This kanji isa phono-semantic compound comprised of 火 (fire) as the semantic component and 隹 (abbreviated from 雥) as the phonetic component (ショウ).

Scorching

(To burn)

()げる refers to the process by which an object turns black or dark brown due to fire or heat.

Manga panel from しろくまカフェ bis showing example of Roast it properly with ちゃんと.
しろくまカフェ bis » Volume 3 » Page 43

Masaki’s dream job making coffee turns out to be nothing like he expected, as he’s put to work sorting out good beans from bad. When he finally has the chance to roast beans, he’s eager to use the fancy roasting machine, but he’s instead given a handheld coffee roaster to hold over a portable stove’s flame.

エゾリスA:
「ほらほら ちゃんと()すらないと〜」
“Come on, come on. You have to shake it properly.”
エゾリスB:
一部(いちぶ)だけ()げちゃうわよ〜」
“Parts of it might get burnt.”
マサキ:
「うるさいなあ」
“Hush up!”
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Agitation

(To be in a hurry)

(あせ)る refers to a state in which one becomes flustered because things aren’t going as planned, loses one’s composure in an attempt to hurry things along, or becomes irritated.

Manga panel from レンタルおにいちゃん showing example of Hurrying is no good with あかん.
レンタルおにいちゃん » Volume 2 » Page 122

After transferring schools, Daigo tries to become friends with everyone. However, Makoto repeated ignores Daigo before finally saying not to talk to him. The other classmates tell Daigo not to bother with Makoto.

大五(だいご):
「まだまだこっから…!」
“There's still a long way to go.”
(あせ)ったらあかん」
“If I hurry it's no good.”
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