You promised and now you can't deliver - stuck in a tight corner now, aren't you?
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Colloquial, slightly playful, mostly heard in northern Mandarin (especially Beijing). Pairs well with 给 (gěi) as a passive marker: 把我给坐蜡了 (bǎ wǒ gěi zuò là le) = 'really put me in a bind'.
memory
Imagine accidentally sitting in melted candle wax (蜡, là) - you're stuck, awkward, and want to get up but can't. That's 坐蜡.
