adverb, noun or participle which takes 'suru'
making out; necking; canoodling; flirting
Colloquial onomatopoeic word for intimate physical affection, from light flirting to heavy petting. Often used with する.
See also: イチャイチャ
公園でカップルがイチャコラしている。
A couple is making out in the park.
I wish they'd stop canoodling in public.