Well at least I'm not the only person having the white bikini causing crashes

Yup, same here

same

also same

Even with hot-fix. Still getting;

Mods in stacktrace:
- BuxomMod (0.9.4)
Cause:
java.lang.ArrayIndexOutOfBoundsException: 1
at BuxomMod.powers.WhiteBikiniCupPower.updateDescription(WhiteBikiniCupPower.java:100)
at BuxomMod.powers.WhiteBikiniCupPower.<init>(WhiteBikiniCupPower.java:48)
at BuxomMod.cards.WhiteBikiniBra.use(WhiteBikiniBra.java:68)
at com.megacrit.cardcrawl.characters.AbstractPlayer.useCard(AbstractPlayer.java:1698)
at com.megacrit.cardcrawl.actions.GameActionManager.getNextAction(GameActionManager.java:359)
at com.megacrit.cardcrawl.actions.GameActionManager.update(GameActionManager.java:175)
at com.megacrit.cardcrawl.rooms.AbstractRoom.update(AbstractRoom.java:325)
at com.megacrit.cardcrawl.dungeons.AbstractDungeon.update(AbstractDungeon.java:2532)
at com.megacrit.cardcrawl.core.CardCrawlGame.update(CardCrawlGame.java:876)
at com.megacrit.cardcrawl.core.CardCrawlGame.render(CardCrawlGame.java:423)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop(LwjglApplication.java:225)
at com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run(LwjglApplication.java:126)

could you try the new patch and post the crash log?
the error that i see here is because white bikini is trying to load a description string (index 1) that doesn't exist, but i've since removed any way for it to try to load that, so i have no idea what's going on and i can't reproduce it myself.