1. superlative form of crampy; most affected by or prone to muscle cramps
Usage: informal; medical/athletic context
2. superlative form of crampy; most confined, restricted, or uncomfortably small in space
Usage: informal

Examples

• After the long flight, my legs felt the crampiest they'd been all week.
• The crampiest apartment on the block was still the most affordable option.
• Athletes complained that the crampiest conditions occurred during the heat wave.
• She found the crampiest corner of the office to set up her temporary desk.
• His handwriting looked crampiest when he was rushing through an exam.