Islamic Yolo means "You Only Look Ones". This term is usually used for boys, when they look at a girl. No matter how pretty is the girl, you can only look ones. Second glance at a non-mahram is haraam. Vice versa.

Praise be to Allaah.

Jareer ibn ‘Abdullaah said: "I asked the Messenger of Allaah (Peace & Blessings of Allaah be upon Him) about an accidental glance at a woman. He commanded me to turn my gaze away." (Reported by al-Tirmidhi, who said: This is a saheeh hasan hadeeth. See al-Sunan, 2700).

Commenting on this hadeeth, al-Mubaarakpoori said: " ‘Accidental’ means that his gaze fell on a non-mahram woman unintentionally. ‘He commanded me to turn my gaze away’ means that he was not to look a second time, because the first glance was not by choice and would be forgiven, but any further glances would be counted as sin, and he should heed the words of Allaah (interpretation of the meaning): ‘Tell the believing men to lower their gaze (from looking at forbidden things)…’ al-Noor 24:30"

The Messenger of Allaah (Peace & Blessings of Allaah be upon Him) said: "O Ali, do not follow a glance with another, for you will be forgiven for the first, but not for the second." (Reported by al-Tirmidhi, 2701; see Saheeh al-Jaami’, 7953)

Islam Q&A

Sheikh Muhammed Salih Al-Munajjid
The word islamic yolo being defined as below:
Brother: *accidently looked at a girl, but forgotten to turn his gaze away*
Sister : *snaps her fingers in front of her brother's face* "Hey, YOLO!"
by maryamkhan May 31, 2017
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