"Lol开黑"是指在游戏中进行的"开黑"（开黑是一种在线游戏中组队进行游戏的方式，通常是与不认识的玩家一起组队）。"Lol"是"英雄联盟"（League of Legends）的简称，因此"lol开黑"指的是在英雄联盟中开黑。
"Lol开黑"的英文表达可以是"playing League of Legends together with strangers"或"teaming up with strangers to play League of Legends"。
例句：
"I'm looking for a group to lol开黑 with tonight. Anyone interested?"（"I'm looking for a group to play League of Legends with tonight. Anyone interested?"）
"I just finished a round of lol开黑. It was a lot of fun!"（"I just finished a round of playing League of Legends with strangers. It was a lot of fun!"）