1. During a game of slime volleyball, being destroyed by the slime in the middle.
2. Being the third wheel in general.
3. Rondo'ing those to the left and right of you
The word is derived from the keys used in a 3-way slime game, where I is jump, K is switch color, and J and L are move left and right.
1. 'Someone' just got IJKL'ed. What a douche.
2. The couple were IJKL'ed by their annoying friend.
3. The convict IJKL'ed the two police officers holding him, and ran away.