bolt

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Related to bolt upright: at least, fall through, touch base

bolt

Regional slang for isobutyl nitrite, an alkyl nitrate inhaled as a recreational abuse substance.
References in classic literature ?
The lama - very pleased that he remembered so well - sat bolt upright.
No sooner did Polly hear her father's gouty footsteps approaching the parlor door, accompanied with the stiff clatter of Feathertop's high-heeled shoes, than she seated herself bolt upright and innocently began warbling a song.
One struck, and two, and we had almost for the second time given it up in despair when in an instant we both sat bolt upright in our chairs with all our weary senses keenly on the alert once more.
One, a tall, wiry, muscular old man, from the west; sunburnt and swarthy; with a brown white hat on his knees, and a giant umbrella resting between his legs; who sat bolt upright in his chair, frowning steadily at the carpet, and twitching the hard lines about his mouth, as if he had made up his mind 'to fix' the President on what he had to say, and wouldn't bate him a grain.
I took a bath and did most of my dressing, splashing, and whistling softly for the steward's edifica- tion, while the secret sharer of my life stood drawn up bolt upright in that little space, his face looking very sunken in daylight, his eyelids lowered under the stern, dark line of his eyebrows drawn together by a slight frown.
Traddles ran his greasy hands through his hair, and stood it bolt upright, and stared in confusion on the table-cloth.
No, I'm going to sit bolt upright gasping at the terrifying realisation that I've FORGOTTEN TO HAVE A BABY
Beacon View clock, Cath Kidston Sputnik wall clock, Marks & Spencer Photo frame clock, Next Never mind the jolt that you get when downing a super-strong double espresso - just looking at these fabulous cups is enough to have you sitting bolt upright and wide awake before your eyes really know what's hit them
My survival instinct forced me to sit bolt upright, although I found out afterwards that was totally the wrong thing to do.
It was sitting in the water bolt upright, and was obviously both scared and confused, not to mention cold.
She sat bolt upright in bed when she and her 38-year-old partner awoke at about 3am to noise downstairs in their detached house on Harrow Road, Linthorpe.
Unlike the other hyacinths grown in the test, they managed to stay bolt upright throughout the trial - essential if you're going to use them in the garden, although they looked good in pots too.