イチオシ
いちおし
noun
top recommendation, top pick
informalspokencolloquial
1.
top recommendation, number-one pick, best choice
Something or someone that one recommends above all others. Literally "number one push." Used in casual conversation, marketing, and fan culture.
Etymology
From 一 (number one) + 推し (push, recommendation). Written in katakana as イチオシ or sometimes in mixed script as 一押し.
Usage
イチオシ is widely used in casual recommendations, restaurant menus, product reviews, and idol/fan culture (where 推し refers to one's favorite member). It implies enthusiastic personal endorsement.