自找苦吃

• 自(nose (pictographic) → self; body)ASSOCIATIVE

Ancient people pointed to their nose when saying "I," so the character for nose also means self.

• 扌(hand; arm)RADICAL
• 戈(spear; weapon)PHONETIC

Using a hand to hold a spear while searching and rummaging, seeking an enemy.

• 艹(grass; plant)RADICAL
• 古(ancient; old)PHONO-SEMANTIC

An ancient grass variety carries a bitter, acrid, and harsh taste.

• 口(mouth; opening)RADICAL
• 乞(beg for food; ask for food)PHONETIC

An open mouth asking for food is the daily act of eating and drinking.