Friday – shing-chee-wor
Written as xīngqīwŭ or xingqiwu
Note: Friday in Mandarin Chinese starts with "Day of the week" which we already know is shing-chee (xingqi).
Friday is shing-chee-wor (xingqiwu).
To remember that the end of the word for Friday is pronounced wor (wu), use the following mnemonic:
This fried (Friday) food isn't even warm (wor).

Tones
Wor (warm) is a 3rd tone with ∪ as an accent.
Associate being warm, a 3rd tone, with a horse shoe or horse or smile. See Tones and Mnemonics.

Imagine the food coming out warm, that would put a smile on his face.
Remember
wor = 3rd tone = ∪
Examples of Xingqiwu (Friday) in sentences:
Zongsuan dao xingqiwu. - Finally it's Friday.
Wo xingqiwu you kong. - I am free on Friday.
zuotian shi xingqiwu. - Yesterday was Friday.