Hangul syllable Bbwagg

It is a Korean Hangul syllable block. Hangul's jamo, or component letters, are ㅃ (initial consonant), ㅘ (vowel), and ㄲ (final consonant).

Hangul arranges alphabetic letters into one block per Korean syllable. It was created under King Sejong in 1443 to represent Korean speech more directly than Chinese-character writing did. A guide called Hunminjeongeum explained its principles in 1446. Hangul coexisted for centuries with literary Chinese, a formal written language based on Chinese characters, and gained official status in 1894. Those dates describe Hangul's history, not the origin of this individual block.

What does it mean if someone sends 뽞?

A lone message gives too little context to identify the intended word or tone. Read the surrounding Korean text if there is any. If it gives no clue, ask what the sender meant rather than assigning the syllable a reaction.

How can I type 뽞?

A Korean input method can join its parts into one block. Enter the initial ㅃ, vowel ㅘ, and final ㄲ in that order; the input method composes them as one syllable. If the field leaves them separate, it is displaying the jamo without composing a block.